Finding the Fourth Proportional to 147,524,491.70, 221,286,737.55 and 70,996,987.70
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Solution
The fourth proportional to 147,524,491.70, 221,286,737.55 and 70,996,987.70 is: 106,495,481.55
Step by Step Solution
- Step 1: Write the proportion equation
147,524,491.70 : 221,286,737.55 = 70,996,987.70 : x - Step 2: Convert to fraction form
147,524,491.70/221,286,737.55 = 70,996,987.70/x - Step 3: Cross multiply
147,524,491.70x = 221,286,737.55 × 70,996,987.70 - Step 4: Simplify right side
147,524,491.70x = 15,710,691,784,010,480 - Step 5: Solve for x
x = 15,710,691,784,010,480/147,524,491.70 - Step 6: Final answer
x = 106,495,481.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.