Home / 139,031,462.92-191,867,823.12-80,293,060.68

Finding the Fourth Proportional to 139,031,462.92, 191,867,823.12 and 80,293,060.68

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Solution

The fourth proportional to 139,031,462.92, 191,867,823.12 and 80,293,060.68 is: 110,806,967.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,031,462.92 : 191,867,823.12 = 80,293,060.68 : x
  2. Step 2: Convert to fraction form
    139,031,462.92/191,867,823.12 = 80,293,060.68/x
  3. Step 3: Cross multiply
    139,031,462.92x = 191,867,823.12 × 80,293,060.68
  4. Step 4: Simplify right side
    139,031,462.92x = 15,405,654,764,313,668
  5. Step 5: Solve for x
    x = 15,405,654,764,313,668/139,031,462.92
  6. Step 6: Final answer
    x = 110,806,967.29

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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.