Finding the Fourth Proportional to 159,720,920, 220,414,869.96 and 86,382,062
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Solution
The fourth proportional to 159,720,920, 220,414,869.96 and 86,382,062 is: 119,207,245.75
Step by Step Solution
- Step 1: Write the proportion equation
159,720,920 : 220,414,869.96 = 86,382,062 : x - Step 2: Convert to fraction form
159,720,920/220,414,869.96 = 86,382,062/x - Step 3: Cross multiply
159,720,920x = 220,414,869.96 × 86,382,062 - Step 4: Simplify right side
159,720,920x = 19,039,890,962,606,660 - Step 5: Solve for x
x = 19,039,890,962,606,660/159,720,920 - Step 6: Final answer
x = 119,207,245.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.