Finding the Fourth Proportional to 39,645,724.20, 54,721,156.23 and 27,091,863.06
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Solution
The fourth proportional to 39,645,724.20, 54,721,156.23 and 27,091,863.06 is: 37,393,643.35
Step by Step Solution
- Step 1: Write the proportion equation
39,645,724.20 : 54,721,156.23 = 27,091,863.06 : x - Step 2: Convert to fraction form
39,645,724.20/54,721,156.23 = 27,091,863.06/x - Step 3: Cross multiply
39,645,724.20x = 54,721,156.23 × 27,091,863.06 - Step 4: Simplify right side
39,645,724.20x = 1,482,498,071,068,025.75 - Step 5: Solve for x
x = 1,482,498,071,068,025.75/39,645,724.20 - Step 6: Final answer
x = 37,393,643.35
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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.