Home / 129,764,122.60-194,756,408.70-53,142,140.20

Finding the Fourth Proportional to 129,764,122.60, 194,756,408.70 and 53,142,140.20

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Solution

The fourth proportional to 129,764,122.60, 194,756,408.70 and 53,142,140.20 is: 79,758,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,764,122.60 : 194,756,408.70 = 53,142,140.20 : x
  2. Step 2: Convert to fraction form
    129,764,122.60/194,756,408.70 = 53,142,140.20/x
  3. Step 3: Cross multiply
    129,764,122.60x = 194,756,408.70 × 53,142,140.20
  4. Step 4: Simplify right side
    129,764,122.60x = 10,349,772,375,983,900
  5. Step 5: Solve for x
    x = 10,349,772,375,983,900/129,764,122.60
  6. Step 6: Final answer
    x = 79,758,350.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.