Home / 18,101,490.20-27,149,610.90-5,320,662.20

Finding the Fourth Proportional to 18,101,490.20, 27,149,610.90 and 5,320,662.20

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Solution

The fourth proportional to 18,101,490.20, 27,149,610.90 and 5,320,662.20 is: 7,980,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101,490.20 : 27,149,610.90 = 5,320,662.20 : x
  2. Step 2: Convert to fraction form
    18,101,490.20/27,149,610.90 = 5,320,662.20/x
  3. Step 3: Cross multiply
    18,101,490.20x = 27,149,610.90 × 5,320,662.20
  4. Step 4: Simplify right side
    18,101,490.20x = 144,453,908,460,337.97
  5. Step 5: Solve for x
    x = 144,453,908,460,337.97/18,101,490.20
  6. Step 6: Final answer
    x = 7,980,221.90

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1.5x scale

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.