Finding the Fourth Proportional to 16,428,612.40, 24,595,679.40 and 15,956,220.40
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Solution
The fourth proportional to 16,428,612.40, 24,595,679.40 and 15,956,220.40 is: 23,888,449.73
Step by Step Solution
- Step 1: Write the proportion equation
16,428,612.40 : 24,595,679.40 = 15,956,220.40 : x - Step 2: Convert to fraction form
16,428,612.40/24,595,679.40 = 15,956,220.40/x - Step 3: Cross multiply
16,428,612.40x = 24,595,679.40 × 15,956,220.40 - Step 4: Simplify right side
16,428,612.40x = 392,454,081,394,139.75 - Step 5: Solve for x
x = 392,454,081,394,139.75/16,428,612.40 - Step 6: Final answer
x = 23,888,449.73
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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.