Finding the Fourth Proportional to 972,220,459.68, 1,341,545,429.52 and 774,485,488.80
Calculator
Solution
The fourth proportional to 972,220,459.68, 1,341,545,429.52 and 774,485,488.80 is: 1,068,695,332.82
Step by Step Solution
- Step 1: Write the proportion equation
972,220,459.68 : 1,341,545,429.52 = 774,485,488.80 : x - Step 2: Convert to fraction form
972,220,459.68/1,341,545,429.52 = 774,485,488.80/x - Step 3: Cross multiply
972,220,459.68x = 1,341,545,429.52 × 774,485,488.80 - Step 4: Simplify right side
972,220,459.68x = 1,039,007,467,729,203,072 - Step 5: Solve for x
x = 1,039,007,467,729,203,072/972,220,459.68 - Step 6: Final answer
x = 1,068,695,332.82
Related Problems
Find fourth proportional to 486,110,229.84, 670,772,714.76 and 387,242,744.40
Half scale
Find fourth proportional to 1,944,440,919.36, 2,683,090,859.04 and 1,548,970,977.60
Double scale
Find fourth proportional to 972,220,460.68, 1,341,545,430.90 and 774,485,489.80
Similar ratio
Find fourth proportional to 1,458,330,689.52, 2,012,318,144.28 and 1,161,728,233.20
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.