Finding the Fourth Proportional to 153,539,836.62, 230,350,079.97 and 55,181,468.58
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Solution
The fourth proportional to 153,539,836.62, 230,350,079.97 and 55,181,468.58 is: 82,786,695.49
Step by Step Solution
- Step 1: Write the proportion equation
153,539,836.62 : 230,350,079.97 = 55,181,468.58 : x - Step 2: Convert to fraction form
153,539,836.62/230,350,079.97 = 55,181,468.58/x - Step 3: Cross multiply
153,539,836.62x = 230,350,079.97 × 55,181,468.58 - Step 4: Simplify right side
153,539,836.62x = 12,711,055,700,265,042 - Step 5: Solve for x
x = 12,711,055,700,265,042/153,539,836.62 - Step 6: Final answer
x = 82,786,695.49
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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.