Home / 74,327,428.20-111,491,142.30-19,739,908.20

Finding the Fourth Proportional to 74,327,428.20, 111,491,142.30 and 19,739,908.20

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Solution

The fourth proportional to 74,327,428.20, 111,491,142.30 and 19,739,908.20 is: 29,609,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,327,428.20 : 111,491,142.30 = 19,739,908.20 : x
  2. Step 2: Convert to fraction form
    74,327,428.20/111,491,142.30 = 19,739,908.20/x
  3. Step 3: Cross multiply
    74,327,428.20x = 111,491,142.30 × 19,739,908.20
  4. Step 4: Simplify right side
    74,327,428.20x = 2,200,824,914,115,136.75
  5. Step 5: Solve for x
    x = 2,200,824,914,115,136.75/74,327,428.20
  6. Step 6: Final answer
    x = 29,609,862.30

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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.