Home / 253,218,044.21-379,819,980.43-80,705,209.73

Finding the Fourth Proportional to 253,218,044.21, 379,819,980.43 and 80,705,209.73

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Solution

The fourth proportional to 253,218,044.21, 379,819,980.43 and 80,705,209.73 is: 121,055,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,044.21 : 379,819,980.43 = 80,705,209.73 : x
  2. Step 2: Convert to fraction form
    253,218,044.21/379,819,980.43 = 80,705,209.73/x
  3. Step 3: Cross multiply
    253,218,044.21x = 379,819,980.43 × 80,705,209.73
  4. Step 4: Simplify right side
    253,218,044.21x = 30,653,451,178,146,780
  5. Step 5: Solve for x
    x = 30,653,451,178,146,780/253,218,044.21
  6. Step 6: Final answer
    x = 121,055,556.19

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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.