Home / 9,138,603.60-13,707,905.40-3,459,013.20

Finding the Fourth Proportional to 9,138,603.60, 13,707,905.40 and 3,459,013.20

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Solution

The fourth proportional to 9,138,603.60, 13,707,905.40 and 3,459,013.20 is: 5,188,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138,603.60 : 13,707,905.40 = 3,459,013.20 : x
  2. Step 2: Convert to fraction form
    9,138,603.60/13,707,905.40 = 3,459,013.20/x
  3. Step 3: Cross multiply
    9,138,603.60x = 13,707,905.40 × 3,459,013.20
  4. Step 4: Simplify right side
    9,138,603.60x = 47,415,825,722,951.28
  5. Step 5: Solve for x
    x = 47,415,825,722,951.28/9,138,603.60
  6. Step 6: Final answer
    x = 5,188,519.80

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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.