Home / 20,451,945.48-28,223,665.12-11,284,588.68

Finding the Fourth Proportional to 20,451,945.48, 28,223,665.12 and 11,284,588.68

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Solution

The fourth proportional to 20,451,945.48, 28,223,665.12 and 11,284,588.68 is: 15,572,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,945.48 : 28,223,665.12 = 11,284,588.68 : x
  2. Step 2: Convert to fraction form
    20,451,945.48/28,223,665.12 = 11,284,588.68/x
  3. Step 3: Cross multiply
    20,451,945.48x = 28,223,665.12 × 11,284,588.68
  4. Step 4: Simplify right side
    20,451,945.48x = 318,492,451,723,721.56
  5. Step 5: Solve for x
    x = 318,492,451,723,721.56/20,451,945.48
  6. Step 6: Final answer
    x = 15,572,721.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.