Home / 142,379,864.29-196,491,841.64-79,652,220.25

Finding the Fourth Proportional to 142,379,864.29, 196,491,841.64 and 79,652,220.25

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Solution

The fourth proportional to 142,379,864.29, 196,491,841.64 and 79,652,220.25 is: 109,924,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,379,864.29 : 196,491,841.64 = 79,652,220.25 : x
  2. Step 2: Convert to fraction form
    142,379,864.29/196,491,841.64 = 79,652,220.25/x
  3. Step 3: Cross multiply
    142,379,864.29x = 196,491,841.64 × 79,652,220.25
  4. Step 4: Simplify right side
    142,379,864.29x = 15,651,011,447,637,400
  5. Step 5: Solve for x
    x = 15,651,011,447,637,400/142,379,864.29
  6. Step 6: Final answer
    x = 109,924,331.83

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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.