Home / 77,375,680.92-106,778,439-42,567,624.36

Finding the Fourth Proportional to 77,375,680.92, 106,778,439 and 42,567,624.36

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Solution

The fourth proportional to 77,375,680.92, 106,778,439 and 42,567,624.36 is: 58,743,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,375,680.92 : 106,778,439 = 42,567,624.36 : x
  2. Step 2: Convert to fraction form
    77,375,680.92/106,778,439 = 42,567,624.36/x
  3. Step 3: Cross multiply
    77,375,680.92x = 106,778,439 × 42,567,624.36
  4. Step 4: Simplify right side
    77,375,680.92x = 4,545,304,481,099,174
  5. Step 5: Solve for x
    x = 4,545,304,481,099,174/77,375,680.92
  6. Step 6: Final answer
    x = 58,743,321.25

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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.