Home / 20,451,722.14-28,223,967.42-11,284,955.38

Finding the Fourth Proportional to 20,451,722.14, 28,223,967.42 and 11,284,955.38

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Solution

The fourth proportional to 20,451,722.14, 28,223,967.42 and 11,284,955.38 is: 15,573,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,722.14 : 28,223,967.42 = 11,284,955.38 : x
  2. Step 2: Convert to fraction form
    20,451,722.14/28,223,967.42 = 11,284,955.38/x
  3. Step 3: Cross multiply
    20,451,722.14x = 28,223,967.42 × 11,284,955.38
  4. Step 4: Simplify right side
    20,451,722.14x = 318,506,212,981,273.75
  5. Step 5: Solve for x
    x = 318,506,212,981,273.75/20,451,722.14
  6. Step 6: Final answer
    x = 15,573,564.46

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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.