Finding the Fourth Proportional to 649,938,851.38, 896,915,614.91 and 371,486,353.62
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Solution
The fourth proportional to 649,938,851.38, 896,915,614.91 and 371,486,353.62 is: 512,651,168.00
Step by Step Solution
- Step 1: Write the proportion equation
649,938,851.38 : 896,915,614.91 = 371,486,353.62 : x - Step 2: Convert to fraction form
649,938,851.38/896,915,614.91 = 371,486,353.62/x - Step 3: Cross multiply
649,938,851.38x = 896,915,614.91 × 371,486,353.62 - Step 4: Simplify right side
649,938,851.38x = 333,191,911,287,755,968 - Step 5: Solve for x
x = 333,191,911,287,755,968/649,938,851.38 - Step 6: Final answer
x = 512,651,168.00
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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.