Finding the Fourth Proportional to 215,642,682.12, 323,609,565.92 and 84,468,687.06
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Solution
The fourth proportional to 215,642,682.12, 323,609,565.92 and 84,468,687.06 is: 126,760,040.66
Step by Step Solution
- Step 1: Write the proportion equation
215,642,682.12 : 323,609,565.92 = 84,468,687.06 : x - Step 2: Convert to fraction form
215,642,682.12/323,609,565.92 = 84,468,687.06/x - Step 3: Cross multiply
215,642,682.12x = 323,609,565.92 × 84,468,687.06 - Step 4: Simplify right side
215,642,682.12x = 27,334,875,153,318,924 - Step 5: Solve for x
x = 27,334,875,153,318,924/215,642,682.12 - Step 6: Final answer
x = 126,760,040.66
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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.