Home / 7,175,491-9,902,255.02-3,912,279.16

Finding the Fourth Proportional to 7,175,491, 9,902,255.02 and 3,912,279.16

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Solution

The fourth proportional to 7,175,491, 9,902,255.02 and 3,912,279.16 is: 5,398,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175,491 : 9,902,255.02 = 3,912,279.16 : x
  2. Step 2: Convert to fraction form
    7,175,491/9,902,255.02 = 3,912,279.16/x
  3. Step 3: Cross multiply
    7,175,491x = 9,902,255.02 × 3,912,279.16
  4. Step 4: Simplify right side
    7,175,491x = 38,740,385,951,751.38
  5. Step 5: Solve for x
    x = 38,740,385,951,751.38/7,175,491
  6. Step 6: Final answer
    x = 5,398,987.46

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Double scale
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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.