Finding the Fourth Proportional to 8,693,572.20, 13,040,358.30 and 6,901,981.80
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Solution
The fourth proportional to 8,693,572.20, 13,040,358.30 and 6,901,981.80 is: 10,352,972.70
Step by Step Solution
- Step 1: Write the proportion equation
8,693,572.20 : 13,040,358.30 = 6,901,981.80 : x - Step 2: Convert to fraction form
8,693,572.20/13,040,358.30 = 6,901,981.80/x - Step 3: Cross multiply
8,693,572.20x = 13,040,358.30 × 6,901,981.80 - Step 4: Simplify right side
8,693,572.20x = 90,004,315,652,078.94 - Step 5: Solve for x
x = 90,004,315,652,078.94/8,693,572.20 - Step 6: Final answer
x = 10,352,972.70
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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.