Home / 131,126,468.63-180,949,773.83-72,387,869.54

Finding the Fourth Proportional to 131,126,468.63, 180,949,773.83 and 72,387,869.54

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Solution

The fourth proportional to 131,126,468.63, 180,949,773.83 and 72,387,869.54 is: 99,892,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126,468.63 : 180,949,773.83 = 72,387,869.54 : x
  2. Step 2: Convert to fraction form
    131,126,468.63/180,949,773.83 = 72,387,869.54/x
  3. Step 3: Cross multiply
    131,126,468.63x = 180,949,773.83 × 72,387,869.54
  4. Step 4: Simplify right side
    131,126,468.63x = 13,098,568,620,031,856
  5. Step 5: Solve for x
    x = 13,098,568,620,031,856/131,126,468.63
  6. Step 6: Final answer
    x = 99,892,636.15

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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.