Home / 142,379,869.85-196,491,849.33-79,652,225.84

Finding the Fourth Proportional to 142,379,869.85, 196,491,849.33 and 79,652,225.84

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Solution

The fourth proportional to 142,379,869.85, 196,491,849.33 and 79,652,225.84 is: 109,924,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,379,869.85 : 196,491,849.33 = 79,652,225.84 : x
  2. Step 2: Convert to fraction form
    142,379,869.85/196,491,849.33 = 79,652,225.84/x
  3. Step 3: Cross multiply
    142,379,869.85x = 196,491,849.33 × 79,652,225.84
  4. Step 4: Simplify right side
    142,379,869.85x = 15,651,013,158,552,414
  5. Step 5: Solve for x
    x = 15,651,013,158,552,414/142,379,869.85
  6. Step 6: Final answer
    x = 109,924,339.55

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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.