Home / 69,138,013.91-103,693,566.92-19,950,409.13

Finding the Fourth Proportional to 69,138,013.91, 103,693,566.92 and 19,950,409.13

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Solution

The fourth proportional to 69,138,013.91, 103,693,566.92 and 19,950,409.13 is: 29,921,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138,013.91 : 103,693,566.92 = 19,950,409.13 : x
  2. Step 2: Convert to fraction form
    69,138,013.91/103,693,566.92 = 19,950,409.13/x
  3. Step 3: Cross multiply
    69,138,013.91x = 103,693,566.92 × 19,950,409.13
  4. Step 4: Simplify right side
    69,138,013.91x = 2,068,729,083,584,814.25
  5. Step 5: Solve for x
    x = 2,068,729,083,584,814.25/69,138,013.91
  6. Step 6: Final answer
    x = 29,921,731.43

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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.