Home / 30,238,122.30-45,345,389.85-13,187,168.70

Finding the Fourth Proportional to 30,238,122.30, 45,345,389.85 and 13,187,168.70

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Solution

The fourth proportional to 30,238,122.30, 45,345,389.85 and 13,187,168.70 is: 19,775,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238,122.30 : 45,345,389.85 = 13,187,168.70 : x
  2. Step 2: Convert to fraction form
    30,238,122.30/45,345,389.85 = 13,187,168.70/x
  3. Step 3: Cross multiply
    30,238,122.30x = 45,345,389.85 × 13,187,168.70
  4. Step 4: Simplify right side
    30,238,122.30x = 597,977,305,719,217.62
  5. Step 5: Solve for x
    x = 597,977,305,719,217.62/30,238,122.30
  6. Step 6: Final answer
    x = 19,775,609.73

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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.