Home / 20,734,682.40-31,102,023.60-13,167,079.20

Finding the Fourth Proportional to 20,734,682.40, 31,102,023.60 and 13,167,079.20

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Solution

The fourth proportional to 20,734,682.40, 31,102,023.60 and 13,167,079.20 is: 19,750,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,682.40 : 31,102,023.60 = 13,167,079.20 : x
  2. Step 2: Convert to fraction form
    20,734,682.40/31,102,023.60 = 13,167,079.20/x
  3. Step 3: Cross multiply
    20,734,682.40x = 31,102,023.60 × 13,167,079.20
  4. Step 4: Simplify right side
    20,734,682.40x = 409,522,808,021,469.12
  5. Step 5: Solve for x
    x = 409,522,808,021,469.12/20,734,682.40
  6. Step 6: Final answer
    x = 19,750,618.80

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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.