Home / 138,786,432.84-191,526,418.35-76,907,804.76

Finding the Fourth Proportional to 138,786,432.84, 191,526,418.35 and 76,907,804.76

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Solution

The fourth proportional to 138,786,432.84, 191,526,418.35 and 76,907,804.76 is: 106,133,402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,786,432.84 : 191,526,418.35 = 76,907,804.76 : x
  2. Step 2: Convert to fraction form
    138,786,432.84/191,526,418.35 = 76,907,804.76/x
  3. Step 3: Cross multiply
    138,786,432.84x = 191,526,418.35 × 76,907,804.76
  4. Step 4: Simplify right side
    138,786,432.84x = 14,729,876,388,843,882
  5. Step 5: Solve for x
    x = 14,729,876,388,843,882/138,786,432.84
  6. Step 6: Final answer
    x = 106,133,402.87

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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.