Home / 17,918,405.20-26,856,612.60-13,425,432.40

Finding the Fourth Proportional to 17,918,405.20, 26,856,612.60 and 13,425,432.40

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Solution

The fourth proportional to 17,918,405.20, 26,856,612.60 and 13,425,432.40 is: 20,122,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918,405.20 : 26,856,612.60 = 13,425,432.40 : x
  2. Step 2: Convert to fraction form
    17,918,405.20/26,856,612.60 = 13,425,432.40/x
  3. Step 3: Cross multiply
    17,918,405.20x = 26,856,612.60 × 13,425,432.40
  4. Step 4: Simplify right side
    17,918,405.20x = 360,561,636,954,288.25
  5. Step 5: Solve for x
    x = 360,561,636,954,288.25/17,918,405.20
  6. Step 6: Final answer
    x = 20,122,417.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.