Home / 56,981,469.81-85,480,717.50-18,121,189.56

Finding the Fourth Proportional to 56,981,469.81, 85,480,717.50 and 18,121,189.56

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Solution

The fourth proportional to 56,981,469.81, 85,480,717.50 and 18,121,189.56 is: 27,184,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,981,469.81 : 85,480,717.50 = 18,121,189.56 : x
  2. Step 2: Convert to fraction form
    56,981,469.81/85,480,717.50 = 18,121,189.56/x
  3. Step 3: Cross multiply
    56,981,469.81x = 85,480,717.50 × 18,121,189.56
  4. Step 4: Simplify right side
    56,981,469.81x = 1,549,012,285,542,309.25
  5. Step 5: Solve for x
    x = 1,549,012,285,542,309.25/56,981,469.81
  6. Step 6: Final answer
    x = 27,184,491.57

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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.