Home / 138,229,338.70-207,374,934.96-51,968,492.78

Finding the Fourth Proportional to 138,229,338.70, 207,374,934.96 and 51,968,492.78

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Solution

The fourth proportional to 138,229,338.70, 207,374,934.96 and 51,968,492.78 is: 77,964,366.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,229,338.70 : 207,374,934.96 = 51,968,492.78 : x
  2. Step 2: Convert to fraction form
    138,229,338.70/207,374,934.96 = 51,968,492.78/x
  3. Step 3: Cross multiply
    138,229,338.70x = 207,374,934.96 × 51,968,492.78
  4. Step 4: Simplify right side
    138,229,338.70x = 10,776,962,810,205,826
  5. Step 5: Solve for x
    x = 10,776,962,810,205,826/138,229,338.70
  6. Step 6: Final answer
    x = 77,964,366.41

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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.