Finding the Fourth Proportional to 15,582,938.48, 21,506,591.20 and 8,967,391.05
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Solution
The fourth proportional to 15,582,938.48, 21,506,591.20 and 8,967,391.05 is: 12,376,228.89
Step by Step Solution
- Step 1: Write the proportion equation
15,582,938.48 : 21,506,591.20 = 8,967,391.05 : x - Step 2: Convert to fraction form
15,582,938.48/21,506,591.20 = 8,967,391.05/x - Step 3: Cross multiply
15,582,938.48x = 21,506,591.20 × 8,967,391.05 - Step 4: Simplify right side
15,582,938.48x = 192,858,013,420,470.31 - Step 5: Solve for x
x = 192,858,013,420,470.31/15,582,938.48 - Step 6: Final answer
x = 12,376,228.89
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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.