Home / 18,683,469.90-28,025,204.85-15,707,400.30

Finding the Fourth Proportional to 18,683,469.90, 28,025,204.85 and 15,707,400.30

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Solution

The fourth proportional to 18,683,469.90, 28,025,204.85 and 15,707,400.30 is: 23,561,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,469.90 : 28,025,204.85 = 15,707,400.30 : x
  2. Step 2: Convert to fraction form
    18,683,469.90/28,025,204.85 = 15,707,400.30/x
  3. Step 3: Cross multiply
    18,683,469.90x = 28,025,204.85 × 15,707,400.30
  4. Step 4: Simplify right side
    18,683,469.90x = 440,203,111,068,451.50
  5. Step 5: Solve for x
    x = 440,203,111,068,451.50/18,683,469.90
  6. Step 6: Final answer
    x = 23,561,100.45

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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.