Home / 138,514,679.65-191,150,156.48-75,791,189.48

Finding the Fourth Proportional to 138,514,679.65, 191,150,156.48 and 75,791,189.48

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Solution

The fourth proportional to 138,514,679.65, 191,150,156.48 and 75,791,189.48 is: 104,591,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,514,679.65 : 191,150,156.48 = 75,791,189.48 : x
  2. Step 2: Convert to fraction form
    138,514,679.65/191,150,156.48 = 75,791,189.48/x
  3. Step 3: Cross multiply
    138,514,679.65x = 191,150,156.48 × 75,791,189.48
  4. Step 4: Simplify right side
    138,514,679.65x = 14,487,497,727,572,622
  5. Step 5: Solve for x
    x = 14,487,497,727,572,622/138,514,679.65
  6. Step 6: Final answer
    x = 104,591,785.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.