Finding the Fourth Proportional to 71,189,938.14, 98,245,929.11 and 39,826,116.12
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Solution
The fourth proportional to 71,189,938.14, 98,245,929.11 and 39,826,116.12 is: 54,962,174.19
Step by Step Solution
- Step 1: Write the proportion equation
71,189,938.14 : 98,245,929.11 = 39,826,116.12 : x - Step 2: Convert to fraction form
71,189,938.14/98,245,929.11 = 39,826,116.12/x - Step 3: Cross multiply
71,189,938.14x = 98,245,929.11 × 39,826,116.12 - Step 4: Simplify right side
71,189,938.14x = 3,912,753,780,853,017.50 - Step 5: Solve for x
x = 3,912,753,780,853,017.50/71,189,938.14 - Step 6: Final answer
x = 54,962,174.19
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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.