Finding the Fourth Proportional to 649,542,403.95, 974,313,605.93 and 442,918,143.15
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Solution
The fourth proportional to 649,542,403.95, 974,313,605.93 and 442,918,143.15 is: 664,377,214.73
Step by Step Solution
- Step 1: Write the proportion equation
649,542,403.95 : 974,313,605.93 = 442,918,143.15 : x - Step 2: Convert to fraction form
649,542,403.95/974,313,605.93 = 442,918,143.15/x - Step 3: Cross multiply
649,542,403.95x = 974,313,605.93 × 442,918,143.15 - Step 4: Simplify right side
649,542,403.95x = 431,541,173,182,081,792 - Step 5: Solve for x
x = 431,541,173,182,081,792/649,542,403.95 - Step 6: Final answer
x = 664,377,214.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.