Finding the Fourth Proportional to 973,742,394.80, 1,343,342,249.12 and 644,176,541.36
Calculator
Solution
The fourth proportional to 973,742,394.80, 1,343,342,249.12 and 644,176,541.36 is: 888,684,285.00
Step by Step Solution
- Step 1: Write the proportion equation
973,742,394.80 : 1,343,342,249.12 = 644,176,541.36 : x - Step 2: Convert to fraction form
973,742,394.80/1,343,342,249.12 = 644,176,541.36/x - Step 3: Cross multiply
973,742,394.80x = 1,343,342,249.12 × 644,176,541.36 - Step 4: Simplify right side
973,742,394.80x = 865,349,563,900,884,992 - Step 5: Solve for x
x = 865,349,563,900,884,992/973,742,394.80 - Step 6: Final answer
x = 888,684,285.00
Related Problems
Find fourth proportional to 486,871,197.40, 671,671,124.56 and 322,088,270.68
Half scale
Find fourth proportional to 1,947,484,789.60, 2,686,684,498.24 and 1,288,353,082.72
Double scale
Find fourth proportional to 973,742,395.80, 1,343,342,250.50 and 644,176,542.36
Similar ratio
Find fourth proportional to 1,460,613,592.20, 2,015,013,373.68 and 966,264,812.04
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.