Home / 20,644,078.32-28,487,214.28-11,476,162.80

Finding the Fourth Proportional to 20,644,078.32, 28,487,214.28 and 11,476,162.80

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Solution

The fourth proportional to 20,644,078.32, 28,487,214.28 and 11,476,162.80 is: 15,836,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,078.32 : 28,487,214.28 = 11,476,162.80 : x
  2. Step 2: Convert to fraction form
    20,644,078.32/28,487,214.28 = 11,476,162.80/x
  3. Step 3: Cross multiply
    20,644,078.32x = 28,487,214.28 × 11,476,162.80
  4. Step 4: Simplify right side
    20,644,078.32x = 326,923,908,795,764.81
  5. Step 5: Solve for x
    x = 326,923,908,795,764.81/20,644,078.32
  6. Step 6: Final answer
    x = 15,836,207.54

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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.