Home / 20,956,535.24-28,904,429.54-18,504,820.76

Finding the Fourth Proportional to 20,956,535.24, 28,904,429.54 and 18,504,820.76

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Solution

The fourth proportional to 20,956,535.24, 28,904,429.54 and 18,504,820.76 is: 25,522,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,535.24 : 28,904,429.54 = 18,504,820.76 : x
  2. Step 2: Convert to fraction form
    20,956,535.24/28,904,429.54 = 18,504,820.76/x
  3. Step 3: Cross multiply
    20,956,535.24x = 28,904,429.54 × 18,504,820.76
  4. Step 4: Simplify right side
    20,956,535.24x = 534,871,287,807,749.25
  5. Step 5: Solve for x
    x = 534,871,287,807,749.25/20,956,535.24
  6. Step 6: Final answer
    x = 25,522,887.33

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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.