Finding the Fourth Proportional to 207,376,529.10, 311,064,793.65 and 130,450,116.30
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Solution
The fourth proportional to 207,376,529.10, 311,064,793.65 and 130,450,116.30 is: 195,675,174.45
Step by Step Solution
- Step 1: Write the proportion equation
207,376,529.10 : 311,064,793.65 = 130,450,116.30 : x - Step 2: Convert to fraction form
207,376,529.10/311,064,793.65 = 130,450,116.30/x - Step 3: Cross multiply
207,376,529.10x = 311,064,793.65 × 130,450,116.30 - Step 4: Simplify right side
207,376,529.10x = 40,578,438,508,478,000 - Step 5: Solve for x
x = 40,578,438,508,478,000/207,376,529.10 - Step 6: Final answer
x = 195,675,174.45
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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.