Finding the Fourth Proportional to 436,752,340.70, 655,128,511.05 and 403,495,943.90
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Solution
The fourth proportional to 436,752,340.70, 655,128,511.05 and 403,495,943.90 is: 605,243,915.85
Step by Step Solution
- Step 1: Write the proportion equation
436,752,340.70 : 655,128,511.05 = 403,495,943.90 : x - Step 2: Convert to fraction form
436,752,340.70/655,128,511.05 = 403,495,943.90/x - Step 3: Cross multiply
436,752,340.70x = 655,128,511.05 × 403,495,943.90 - Step 4: Simplify right side
436,752,340.70x = 264,341,696,941,921,280 - Step 5: Solve for x
x = 264,341,696,941,921,280/436,752,340.70 - Step 6: Final answer
x = 605,243,915.85
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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.