Finding the Fourth Proportional to 71,938,454.48, 99,274,996.80 and 38,898,624.68
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Solution
The fourth proportional to 71,938,454.48, 99,274,996.80 and 38,898,624.68 is: 53,680,064.00
Step by Step Solution
- Step 1: Write the proportion equation
71,938,454.48 : 99,274,996.80 = 38,898,624.68 : x - Step 2: Convert to fraction form
71,938,454.48/99,274,996.80 = 38,898,624.68/x - Step 3: Cross multiply
71,938,454.48x = 99,274,996.80 × 38,898,624.68 - Step 4: Simplify right side
71,938,454.48x = 3,861,660,840,631,401 - Step 5: Solve for x
x = 3,861,660,840,631,401/71,938,454.48 - Step 6: Final answer
x = 53,680,064.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.