Home / 15,202,697.12-20,982,426-9,091,797.92

Finding the Fourth Proportional to 15,202,697.12, 20,982,426 and 9,091,797.92

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Solution

The fourth proportional to 15,202,697.12, 20,982,426 and 9,091,797.92 is: 12,548,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202,697.12 : 20,982,426 = 9,091,797.92 : x
  2. Step 2: Convert to fraction form
    15,202,697.12/20,982,426 = 9,091,797.92/x
  3. Step 3: Cross multiply
    15,202,697.12x = 20,982,426 × 9,091,797.92
  4. Step 4: Simplify right side
    15,202,697.12x = 190,767,977,063,353.91
  5. Step 5: Solve for x
    x = 190,767,977,063,353.91/15,202,697.12
  6. Step 6: Final answer
    x = 12,548,298.21

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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.