Home / 129,764,387.60-194,756,806.20-53,142,405.20

Finding the Fourth Proportional to 129,764,387.60, 194,756,806.20 and 53,142,405.20

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Solution

The fourth proportional to 129,764,387.60, 194,756,806.20 and 53,142,405.20 is: 79,758,748.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,764,387.60 : 194,756,806.20 = 53,142,405.20 : x
  2. Step 2: Convert to fraction form
    129,764,387.60/194,756,806.20 = 53,142,405.20/x
  3. Step 3: Cross multiply
    129,764,387.60x = 194,756,806.20 × 53,142,405.20
  4. Step 4: Simplify right side
    129,764,387.60x = 10,349,845,110,538,272
  5. Step 5: Solve for x
    x = 10,349,845,110,538,272/129,764,387.60
  6. Step 6: Final answer
    x = 79,758,748.16

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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.