Home / 138,741,441.24-191,447,741.67-76,846,279.44

Finding the Fourth Proportional to 138,741,441.24, 191,447,741.67 and 76,846,279.44

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Solution

The fourth proportional to 138,741,441.24, 191,447,741.67 and 76,846,279.44 is: 106,039,309.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,741,441.24 : 191,447,741.67 = 76,846,279.44 : x
  2. Step 2: Convert to fraction form
    138,741,441.24/191,447,741.67 = 76,846,279.44/x
  3. Step 3: Cross multiply
    138,741,441.24x = 191,447,741.67 × 76,846,279.44
  4. Step 4: Simplify right side
    138,741,441.24x = 14,712,046,654,529,750
  5. Step 5: Solve for x
    x = 14,712,046,654,529,750/138,741,441.24
  6. Step 6: Final answer
    x = 106,039,309.69

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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.