Finding the Fourth Proportional to 159,720,567.28, 220,414,381.14 and 86,381,709.28
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Solution
The fourth proportional to 159,720,567.28, 220,414,381.14 and 86,381,709.28 is: 119,206,757.88
Step by Step Solution
- Step 1: Write the proportion equation
159,720,567.28 : 220,414,381.14 = 86,381,709.28 : x - Step 2: Convert to fraction form
159,720,567.28/220,414,381.14 = 86,381,709.28/x - Step 3: Cross multiply
159,720,567.28x = 220,414,381.14 × 86,381,709.28 - Step 4: Simplify right side
159,720,567.28x = 19,039,770,992,766,596 - Step 5: Solve for x
x = 19,039,770,992,766,596/159,720,567.28 - Step 6: Final answer
x = 119,206,757.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.