Home / 19,278,001.20-28,917,001.80-8,489,748.90

Finding the Fourth Proportional to 19,278,001.20, 28,917,001.80 and 8,489,748.90

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Solution

The fourth proportional to 19,278,001.20, 28,917,001.80 and 8,489,748.90 is: 12,734,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278,001.20 : 28,917,001.80 = 8,489,748.90 : x
  2. Step 2: Convert to fraction form
    19,278,001.20/28,917,001.80 = 8,489,748.90/x
  3. Step 3: Cross multiply
    19,278,001.20x = 28,917,001.80 × 8,489,748.90
  4. Step 4: Simplify right side
    19,278,001.20x = 245,498,084,222,848.03
  5. Step 5: Solve for x
    x = 245,498,084,222,848.03/19,278,001.20
  6. Step 6: Final answer
    x = 12,734,623.35

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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.