Home / 69,138,009.39-103,693,560.19-19,950,404.61

Finding the Fourth Proportional to 69,138,009.39, 103,693,560.19 and 19,950,404.61

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Solution

The fourth proportional to 69,138,009.39, 103,693,560.19 and 19,950,404.61 is: 29,921,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138,009.39 : 103,693,560.19 = 19,950,404.61 : x
  2. Step 2: Convert to fraction form
    69,138,009.39/103,693,560.19 = 19,950,404.61/x
  3. Step 3: Cross multiply
    69,138,009.39x = 103,693,560.19 × 19,950,404.61
  4. Step 4: Simplify right side
    69,138,009.39x = 2,068,728,481,580,863.25
  5. Step 5: Solve for x
    x = 2,068,728,481,580,863.25/69,138,009.39
  6. Step 6: Final answer
    x = 29,921,724.67

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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.