Home / 81,438,114.90-122,157,172.35-49,126,502.10

Finding the Fourth Proportional to 81,438,114.90, 122,157,172.35 and 49,126,502.10

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Solution

The fourth proportional to 81,438,114.90, 122,157,172.35 and 49,126,502.10 is: 73,689,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,438,114.90 : 122,157,172.35 = 49,126,502.10 : x
  2. Step 2: Convert to fraction form
    81,438,114.90/122,157,172.35 = 49,126,502.10/x
  3. Step 3: Cross multiply
    81,438,114.90x = 122,157,172.35 × 49,126,502.10
  4. Step 4: Simplify right side
    81,438,114.90x = 6,001,154,583,982,337
  5. Step 5: Solve for x
    x = 6,001,154,583,982,337/81,438,114.90
  6. Step 6: Final answer
    x = 73,689,753.15

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Double scale
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Similar ratio
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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.