Finding the Fourth Proportional to 353,502,470.25, 487,796,709.87 and 217,691,116.44
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Solution
The fourth proportional to 353,502,470.25, 487,796,709.87 and 217,691,116.44 is: 300,391,140.95
Step by Step Solution
- Step 1: Write the proportion equation
353,502,470.25 : 487,796,709.87 = 217,691,116.44 : x - Step 2: Convert to fraction form
353,502,470.25/487,796,709.87 = 217,691,116.44/x - Step 3: Cross multiply
353,502,470.25x = 487,796,709.87 × 217,691,116.44 - Step 4: Simplify right side
353,502,470.25x = 106,189,010,367,359,072 - Step 5: Solve for x
x = 106,189,010,367,359,072/353,502,470.25 - Step 6: Final answer
x = 300,391,140.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.