Home / 115,001,905.72-172,505,541.48-38,331,167.80

Finding the Fourth Proportional to 115,001,905.72, 172,505,541.48 and 38,331,167.80

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Solution

The fourth proportional to 115,001,905.72, 172,505,541.48 and 38,331,167.80 is: 57,497,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,001,905.72 : 172,505,541.48 = 38,331,167.80 : x
  2. Step 2: Convert to fraction form
    115,001,905.72/172,505,541.48 = 38,331,167.80/x
  3. Step 3: Cross multiply
    115,001,905.72x = 172,505,541.48 × 38,331,167.80
  4. Step 4: Simplify right side
    115,001,905.72x = 6,612,338,856,899,739
  5. Step 5: Solve for x
    x = 6,612,338,856,899,739/115,001,905.72
  6. Step 6: Final answer
    x = 57,497,645.93

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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.