Finding the Fourth Proportional to 219,846,905.70, 329,770,358.55 and 76,239,737.70
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Solution
The fourth proportional to 219,846,905.70, 329,770,358.55 and 76,239,737.70 is: 114,359,606.55
Step by Step Solution
- Step 1: Write the proportion equation
219,846,905.70 : 329,770,358.55 = 76,239,737.70 : x - Step 2: Convert to fraction form
219,846,905.70/329,770,358.55 = 76,239,737.70/x - Step 3: Cross multiply
219,846,905.70x = 329,770,358.55 × 76,239,737.70 - Step 4: Simplify right side
219,846,905.70x = 25,141,605,637,086,956 - Step 5: Solve for x
x = 25,141,605,637,086,956/219,846,905.70 - Step 6: Final answer
x = 114,359,606.55
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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.