Home / 20,830,228.56-28,739,497.33-13,476,416.76

Finding the Fourth Proportional to 20,830,228.56, 28,739,497.33 and 13,476,416.76

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Solution

The fourth proportional to 20,830,228.56, 28,739,497.33 and 13,476,416.76 is: 18,593,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,228.56 : 28,739,497.33 = 13,476,416.76 : x
  2. Step 2: Convert to fraction form
    20,830,228.56/28,739,497.33 = 13,476,416.76/x
  3. Step 3: Cross multiply
    20,830,228.56x = 28,739,497.33 × 13,476,416.76
  4. Step 4: Simplify right side
    20,830,228.56x = 387,305,443,491,987.25
  5. Step 5: Solve for x
    x = 387,305,443,491,987.25/20,830,228.56
  6. Step 6: Final answer
    x = 18,593,432.25

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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.