Finding the Fourth Proportional to 132,815,399.13, 198,814,490.28 and 86,657,879.97
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Solution
The fourth proportional to 132,815,399.13, 198,814,490.28 and 86,657,879.97 is: 129,720,215.79
Step by Step Solution
- Step 1: Write the proportion equation
132,815,399.13 : 198,814,490.28 = 86,657,879.97 : x - Step 2: Convert to fraction form
132,815,399.13/198,814,490.28 = 86,657,879.97/x - Step 3: Cross multiply
132,815,399.13x = 198,814,490.28 × 86,657,879.97 - Step 4: Simplify right side
132,815,399.13x = 17,228,842,234,980,972 - Step 5: Solve for x
x = 17,228,842,234,980,972/132,815,399.13 - Step 6: Final answer
x = 129,720,215.79
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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.