Home / 138,229,339.70-207,374,936.46-51,968,493.78

Finding the Fourth Proportional to 138,229,339.70, 207,374,936.46 and 51,968,493.78

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Solution

The fourth proportional to 138,229,339.70, 207,374,936.46 and 51,968,493.78 is: 77,964,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,229,339.70 : 207,374,936.46 = 51,968,493.78 : x
  2. Step 2: Convert to fraction form
    138,229,339.70/207,374,936.46 = 51,968,493.78/x
  3. Step 3: Cross multiply
    138,229,339.70x = 207,374,936.46 × 51,968,493.78
  4. Step 4: Simplify right side
    138,229,339.70x = 10,776,963,095,549,406
  5. Step 5: Solve for x
    x = 10,776,963,095,549,406/138,229,339.70
  6. Step 6: Final answer
    x = 77,964,367.90

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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.