Home / 129,865,043.70-179,216,660.61-74,109,353.85

Finding the Fourth Proportional to 129,865,043.70, 179,216,660.61 and 74,109,353.85

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Solution

The fourth proportional to 129,865,043.70, 179,216,660.61 and 74,109,353.85 is: 102,272,563.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865,043.70 : 179,216,660.61 = 74,109,353.85 : x
  2. Step 2: Convert to fraction form
    129,865,043.70/179,216,660.61 = 74,109,353.85/x
  3. Step 3: Cross multiply
    129,865,043.70x = 179,216,660.61 × 74,109,353.85
  4. Step 4: Simplify right side
    129,865,043.70x = 13,281,630,916,961,846
  5. Step 5: Solve for x
    x = 13,281,630,916,961,846/129,865,043.70
  6. Step 6: Final answer
    x = 102,272,563.41

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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.