Finding the Fourth Proportional to 436,735,547.20, 655,103,320.80 and 207,153,035.20
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Solution
The fourth proportional to 436,735,547.20, 655,103,320.80 and 207,153,035.20 is: 310,729,552.80
Step by Step Solution
- Step 1: Write the proportion equation
436,735,547.20 : 655,103,320.80 = 207,153,035.20 : x - Step 2: Convert to fraction form
436,735,547.20/655,103,320.80 = 207,153,035.20/x - Step 3: Cross multiply
436,735,547.20x = 655,103,320.80 × 207,153,035.20 - Step 4: Simplify right side
436,735,547.20x = 135,706,641,273,319,280 - Step 5: Solve for x
x = 135,706,641,273,319,280/436,735,547.20 - Step 6: Final answer
x = 310,729,552.80
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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.