Finding the Fourth Proportional to 5,471,981.90, 8,207,972.85 and 1,684,972.70
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Solution
The fourth proportional to 5,471,981.90, 8,207,972.85 and 1,684,972.70 is: 2,527,459.05
Step by Step Solution
- Step 1: Write the proportion equation
5,471,981.90 : 8,207,972.85 = 1,684,972.70 : x - Step 2: Convert to fraction form
5,471,981.90/8,207,972.85 = 1,684,972.70/x - Step 3: Cross multiply
5,471,981.90x = 8,207,972.85 × 1,684,972.70 - Step 4: Simplify right side
5,471,981.90x = 13,830,210,174,591.19 - Step 5: Solve for x
x = 13,830,210,174,591.19/5,471,981.90 - Step 6: Final answer
x = 2,527,459.05
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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.