Home / 85,092,174.12-127,541,439.66-51,781,920.90

Finding the Fourth Proportional to 85,092,174.12, 127,541,439.66 and 51,781,920.90

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Solution

The fourth proportional to 85,092,174.12, 127,541,439.66 and 51,781,920.90 is: 77,613,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,092,174.12 : 127,541,439.66 = 51,781,920.90 : x
  2. Step 2: Convert to fraction form
    85,092,174.12/127,541,439.66 = 51,781,920.90/x
  3. Step 3: Cross multiply
    85,092,174.12x = 127,541,439.66 × 51,781,920.90
  4. Step 4: Simplify right side
    85,092,174.12x = 6,604,340,739,946,243
  5. Step 5: Solve for x
    x = 6,604,340,739,946,243/85,092,174.12
  6. Step 6: Final answer
    x = 77,613,961.66

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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.