Finding the Fourth Proportional to 159,720,566.28, 220,414,379.76 and 86,381,708.28
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Solution
The fourth proportional to 159,720,566.28, 220,414,379.76 and 86,381,708.28 is: 119,206,756.50
Step by Step Solution
- Step 1: Write the proportion equation
159,720,566.28 : 220,414,379.76 = 86,381,708.28 : x - Step 2: Convert to fraction form
159,720,566.28/220,414,379.76 = 86,381,708.28/x - Step 3: Cross multiply
159,720,566.28x = 220,414,379.76 × 86,381,708.28 - Step 4: Simplify right side
159,720,566.28x = 19,039,770,653,145,456 - Step 5: Solve for x
x = 19,039,770,653,145,456/159,720,566.28 - Step 6: Final answer
x = 119,206,756.50
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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.