Finding the Fourth Proportional to 5,518,732.18, 7,615,748.19 and 3,071,321.62
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Solution
The fourth proportional to 5,518,732.18, 7,615,748.19 and 3,071,321.62 is: 4,238,366.95
Step by Step Solution
- Step 1: Write the proportion equation
5,518,732.18 : 7,615,748.19 = 3,071,321.62 : x - Step 2: Convert to fraction form
5,518,732.18/7,615,748.19 = 3,071,321.62/x - Step 3: Cross multiply
5,518,732.18x = 7,615,748.19 × 3,071,321.62 - Step 4: Simplify right side
5,518,732.18x = 23,390,412,068,422.87 - Step 5: Solve for x
x = 23,390,412,068,422.87/5,518,732.18 - Step 6: Final answer
x = 4,238,366.95
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1.5x scale
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.