Finding the Fourth Proportional to 481,215,779.40, 664,060,592.07 and 272,367,436.80
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Solution
The fourth proportional to 481,215,779.40, 664,060,592.07 and 272,367,436.80 is: 375,857,336.95
Step by Step Solution
- Step 1: Write the proportion equation
481,215,779.40 : 664,060,592.07 = 272,367,436.80 : x - Step 2: Convert to fraction form
481,215,779.40/664,060,592.07 = 272,367,436.80/x - Step 3: Cross multiply
481,215,779.40x = 664,060,592.07 × 272,367,436.80 - Step 4: Simplify right side
481,215,779.40x = 180,868,481,341,996,320 - Step 5: Solve for x
x = 180,868,481,341,996,320/481,215,779.40 - Step 6: Final answer
x = 375,857,336.95
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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.