Home / 10,331,330.40-15,496,995.60-9,215,304.30

Finding the Fourth Proportional to 10,331,330.40, 15,496,995.60 and 9,215,304.30

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Solution

The fourth proportional to 10,331,330.40, 15,496,995.60 and 9,215,304.30 is: 13,822,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331,330.40 : 15,496,995.60 = 9,215,304.30 : x
  2. Step 2: Convert to fraction form
    10,331,330.40/15,496,995.60 = 9,215,304.30/x
  3. Step 3: Cross multiply
    10,331,330.40x = 15,496,995.60 × 9,215,304.30
  4. Step 4: Simplify right side
    10,331,330.40x = 142,809,530,189,761.09
  5. Step 5: Solve for x
    x = 142,809,530,189,761.09/10,331,330.40
  6. Step 6: Final answer
    x = 13,822,956.45

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Double scale
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Similar ratio
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1.5x scale

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.