Finding the Fourth Proportional to 442,869,414.40, 664,304,121.60 and 136,121,669.20
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Solution
The fourth proportional to 442,869,414.40, 664,304,121.60 and 136,121,669.20 is: 204,182,503.80
Step by Step Solution
- Step 1: Write the proportion equation
442,869,414.40 : 664,304,121.60 = 136,121,669.20 : x - Step 2: Convert to fraction form
442,869,414.40/664,304,121.60 = 136,121,669.20/x - Step 3: Cross multiply
442,869,414.40x = 664,304,121.60 × 136,121,669.20 - Step 4: Simplify right side
442,869,414.40x = 90,426,185,888,631,776 - Step 5: Solve for x
x = 90,426,185,888,631,776/442,869,414.40 - Step 6: Final answer
x = 204,182,503.80
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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.