Finding the Fourth Proportional to 328,974,096.29, 493,457,340.12 and 79,980,764.07
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Solution
The fourth proportional to 328,974,096.29, 493,457,340.12 and 79,980,764.07 is: 119,970,221.20
Step by Step Solution
- Step 1: Write the proportion equation
328,974,096.29 : 493,457,340.12 = 79,980,764.07 : x - Step 2: Convert to fraction form
328,974,096.29/493,457,340.12 = 79,980,764.07/x - Step 3: Cross multiply
328,974,096.29x = 493,457,340.12 × 79,980,764.07 - Step 4: Simplify right side
328,974,096.29x = 39,467,095,098,747,464 - Step 5: Solve for x
x = 39,467,095,098,747,464/328,974,096.29 - Step 6: Final answer
x = 119,970,221.20
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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.