Finding the Fourth Proportional to 141,319,687.80, 211,979,531.70 and 76,654,471.80
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Solution
The fourth proportional to 141,319,687.80, 211,979,531.70 and 76,654,471.80 is: 114,981,707.70
Step by Step Solution
- Step 1: Write the proportion equation
141,319,687.80 : 211,979,531.70 = 76,654,471.80 : x - Step 2: Convert to fraction form
141,319,687.80/211,979,531.70 = 76,654,471.80/x - Step 3: Cross multiply
141,319,687.80x = 211,979,531.70 × 76,654,471.80 - Step 4: Simplify right side
141,319,687.80x = 16,249,179,034,874,854 - Step 5: Solve for x
x = 16,249,179,034,874,854/141,319,687.80 - Step 6: Final answer
x = 114,981,707.70
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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.