Home / 42,209,819.92-63,319,320.60-13,449,195.28

Finding the Fourth Proportional to 42,209,819.92, 63,319,320.60 and 13,449,195.28

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Solution

The fourth proportional to 42,209,819.92, 63,319,320.60 and 13,449,195.28 is: 20,175,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,209,819.92 : 63,319,320.60 = 13,449,195.28 : x
  2. Step 2: Convert to fraction form
    42,209,819.92/63,319,320.60 = 13,449,195.28/x
  3. Step 3: Cross multiply
    42,209,819.92x = 63,319,320.60 × 13,449,195.28
  4. Step 4: Simplify right side
    42,209,819.92x = 851,593,907,746,326.75
  5. Step 5: Solve for x
    x = 851,593,907,746,326.75/42,209,819.92
  6. Step 6: Final answer
    x = 20,175,255.65

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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.