Finding the Fourth Proportional to 87,720,265.31, 131,655,980.69 and 60,812,816.99
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Solution
The fourth proportional to 87,720,265.31, 131,655,980.69 and 60,812,816.99 is: 91,271,623.85
Step by Step Solution
- Step 1: Write the proportion equation
87,720,265.31 : 131,655,980.69 = 60,812,816.99 : x - Step 2: Convert to fraction form
87,720,265.31/131,655,980.69 = 60,812,816.99/x - Step 3: Cross multiply
87,720,265.31x = 131,655,980.69 × 60,812,816.99 - Step 4: Simplify right side
87,720,265.31x = 8,006,371,059,669,084 - Step 5: Solve for x
x = 8,006,371,059,669,084/87,720,265.31 - Step 6: Final answer
x = 91,271,623.85
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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.