Finding the Fourth Proportional to 5,518,720.68, 7,615,732.35 and 3,071,310.15
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Solution
The fourth proportional to 5,518,720.68, 7,615,732.35 and 3,071,310.15 is: 4,238,351.13
Step by Step Solution
- Step 1: Write the proportion equation
5,518,720.68 : 7,615,732.35 = 3,071,310.15 : x - Step 2: Convert to fraction form
5,518,720.68/7,615,732.35 = 3,071,310.15/x - Step 3: Cross multiply
5,518,720.68x = 7,615,732.35 × 3,071,310.15 - Step 4: Simplify right side
5,518,720.68x = 23,390,276,039,810.24 - Step 5: Solve for x
x = 23,390,276,039,810.24/5,518,720.68 - Step 6: Final answer
x = 4,238,351.13
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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.