Home / 138,786,513.52-191,526,529.44-76,907,885.44

Finding the Fourth Proportional to 138,786,513.52, 191,526,529.44 and 76,907,885.44

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Solution

The fourth proportional to 138,786,513.52, 191,526,529.44 and 76,907,885.44 is: 106,133,514.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,786,513.52 : 191,526,529.44 = 76,907,885.44 : x
  2. Step 2: Convert to fraction form
    138,786,513.52/191,526,529.44 = 76,907,885.44/x
  3. Step 3: Cross multiply
    138,786,513.52x = 191,526,529.44 × 76,907,885.44
  4. Step 4: Simplify right side
    138,786,513.52x = 14,729,900,384,892,306
  5. Step 5: Solve for x
    x = 14,729,900,384,892,306/138,786,513.52
  6. Step 6: Final answer
    x = 106,133,514.07

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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.