Finding the Fourth Proportional to 261,714,470.70, 392,575,774.91 and 77,500,578.65
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Solution
The fourth proportional to 261,714,470.70, 392,575,774.91 and 77,500,578.65 is: 116,252,072.86
Step by Step Solution
- Step 1: Write the proportion equation
261,714,470.70 : 392,575,774.91 = 77,500,578.65 : x - Step 2: Convert to fraction form
261,714,470.70/392,575,774.91 = 77,500,578.65/x - Step 3: Cross multiply
261,714,470.70x = 392,575,774.91 × 77,500,578.65 - Step 4: Simplify right side
261,714,470.70x = 30,424,849,717,146,768 - Step 5: Solve for x
x = 30,424,849,717,146,768/261,714,470.70 - Step 6: Final answer
x = 116,252,072.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.