Finding the Fourth Proportional to 404,485,135,400.80, 558,190,159,763.20 and 221,578,249,411.34
Calculator
Solution
The fourth proportional to 404,485,135,400.80, 558,190,159,763.20 and 221,578,249,411.34 is: 305,778,352,809.95
Step by Step Solution
- Step 1: Write the proportion equation
404,485,135,400.80 : 558,190,159,763.20 = 221,578,249,411.34 : x - Step 2: Convert to fraction form
404,485,135,400.80/558,190,159,763.20 = 221,578,249,411.34/x - Step 3: Cross multiply
404,485,135,400.80x = 558,190,159,763.20 × 221,578,249,411.34 - Step 4: Simplify right side
404,485,135,400.80x = 123,682,798,438,966,041,247,744 - Step 5: Solve for x
x = 123,682,798,438,966,041,247,744/404,485,135,400.80 - Step 6: Final answer
x = 305,778,352,809.95
Related Problems
Find fourth proportional to 202,242,567,700.40, 279,095,079,881.60 and 110,789,124,705.67
Half scale
Find fourth proportional to 808,970,270,801.60, 1,116,380,319,526.40 and 443,156,498,822.68
Double scale
Find fourth proportional to 404,485,135,401.80, 558,190,159,764.58 and 221,578,249,412.34
Similar ratio
Find fourth proportional to 606,727,703,101.20, 837,285,239,644.80 and 332,367,374,117.01
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.