Home / 82,518,164.58-123,781,358.25-31,404,144.90

Finding the Fourth Proportional to 82,518,164.58, 123,781,358.25 and 31,404,144.90

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Solution

The fourth proportional to 82,518,164.58, 123,781,358.25 and 31,404,144.90 is: 47,107,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,164.58 : 123,781,358.25 = 31,404,144.90 : x
  2. Step 2: Convert to fraction form
    82,518,164.58/123,781,358.25 = 31,404,144.90/x
  3. Step 3: Cross multiply
    82,518,164.58x = 123,781,358.25 × 31,404,144.90
  4. Step 4: Simplify right side
    82,518,164.58x = 3,887,247,710,401,810
  5. Step 5: Solve for x
    x = 3,887,247,710,401,810/82,518,164.58
  6. Step 6: Final answer
    x = 47,107,782.03

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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.