Home / 20,455,932.66-28,229,785.55-11,164,098.69

Finding the Fourth Proportional to 20,455,932.66, 28,229,785.55 and 11,164,098.69

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Solution

The fourth proportional to 20,455,932.66, 28,229,785.55 and 11,164,098.69 is: 15,406,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,932.66 : 28,229,785.55 = 11,164,098.69 : x
  2. Step 2: Convert to fraction form
    20,455,932.66/28,229,785.55 = 11,164,098.69/x
  3. Step 3: Cross multiply
    20,455,932.66x = 28,229,785.55 × 11,164,098.69
  4. Step 4: Simplify right side
    20,455,932.66x = 315,160,111,892,489.94
  5. Step 5: Solve for x
    x = 315,160,111,892,489.94/20,455,932.66
  6. Step 6: Final answer
    x = 15,406,782.82

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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.