Finding the Fourth Proportional to 397,889,766.38, 548,715,432.12 and 314,457,214.08
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Solution
The fourth proportional to 397,889,766.38, 548,715,432.12 and 314,457,214.08 is: 433,656,607.15
Step by Step Solution
- Step 1: Write the proportion equation
397,889,766.38 : 548,715,432.12 = 314,457,214.08 : x - Step 2: Convert to fraction form
397,889,766.38/548,715,432.12 = 314,457,214.08/x - Step 3: Cross multiply
397,889,766.38x = 548,715,432.12 × 314,457,214.08 - Step 4: Simplify right side
397,889,766.38x = 172,547,526,107,158,528 - Step 5: Solve for x
x = 172,547,526,107,158,528/397,889,766.38 - Step 6: Final answer
x = 433,656,607.15
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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.