Finding the Fourth Proportional to 424,436,531.64, 636,654,758.40 and 117,728,657.88
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Solution
The fourth proportional to 424,436,531.64, 636,654,758.40 and 117,728,657.88 is: 176,592,975.99
Step by Step Solution
- Step 1: Write the proportion equation
424,436,531.64 : 636,654,758.40 = 117,728,657.88 : x - Step 2: Convert to fraction form
424,436,531.64/636,654,758.40 = 117,728,657.88/x - Step 3: Cross multiply
424,436,531.64x = 636,654,758.40 × 117,728,657.88 - Step 4: Simplify right side
424,436,531.64x = 74,952,510,239,347,648 - Step 5: Solve for x
x = 74,952,510,239,347,648/424,436,531.64 - Step 6: Final answer
x = 176,592,975.99
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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.