Home / 129,491,178.40-194,180,780.40-64,769,975.20

Finding the Fourth Proportional to 129,491,178.40, 194,180,780.40 and 64,769,975.20

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Solution

The fourth proportional to 129,491,178.40, 194,180,780.40 and 64,769,975.20 is: 97,126,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,491,178.40 : 194,180,780.40 = 64,769,975.20 : x
  2. Step 2: Convert to fraction form
    129,491,178.40/194,180,780.40 = 64,769,975.20/x
  3. Step 3: Cross multiply
    129,491,178.40x = 194,180,780.40 × 64,769,975.20
  4. Step 4: Simplify right side
    129,491,178.40x = 12,577,084,330,824,648
  5. Step 5: Solve for x
    x = 12,577,084,330,824,648/129,491,178.40
  6. Step 6: Final answer
    x = 97,126,958.66

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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.