Home / 81,438,194.40-122,157,291.60-49,126,581.60

Finding the Fourth Proportional to 81,438,194.40, 122,157,291.60 and 49,126,581.60

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Solution

The fourth proportional to 81,438,194.40, 122,157,291.60 and 49,126,581.60 is: 73,689,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,438,194.40 : 122,157,291.60 = 49,126,581.60 : x
  2. Step 2: Convert to fraction form
    81,438,194.40/122,157,291.60 = 49,126,581.60/x
  3. Step 3: Cross multiply
    81,438,194.40x = 122,157,291.60 × 49,126,581.60
  4. Step 4: Simplify right side
    81,438,194.40x = 6,001,170,153,822,394
  5. Step 5: Solve for x
    x = 6,001,170,153,822,394/81,438,194.40
  6. Step 6: Final answer
    x = 73,689,872.40

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Double scale
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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.