Home / 4,857,780.06-7,289,191.85-1,981,257.21

Finding the Fourth Proportional to 4,857,780.06, 7,289,191.85 and 1,981,257.21

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Solution

The fourth proportional to 4,857,780.06, 7,289,191.85 and 1,981,257.21 is: 2,972,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,857,780.06 : 7,289,191.85 = 1,981,257.21 : x
  2. Step 2: Convert to fraction form
    4,857,780.06/7,289,191.85 = 1,981,257.21/x
  3. Step 3: Cross multiply
    4,857,780.06x = 7,289,191.85 × 1,981,257.21
  4. Step 4: Simplify right side
    4,857,780.06x = 14,441,763,897,979.45
  5. Step 5: Solve for x
    x = 14,441,763,897,979.45/4,857,780.06
  6. Step 6: Final answer
    x = 2,972,914.32

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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.