Home / 280,213,704.11-420,371,485.97-140,227,273.17

Finding the Fourth Proportional to 280,213,704.11, 420,371,485.97 and 140,227,273.17

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Solution

The fourth proportional to 280,213,704.11, 420,371,485.97 and 140,227,273.17 is: 210,366,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,213,704.11 : 420,371,485.97 = 140,227,273.17 : x
  2. Step 2: Convert to fraction form
    280,213,704.11/420,371,485.97 = 140,227,273.17/x
  3. Step 3: Cross multiply
    280,213,704.11x = 420,371,485.97 × 140,227,273.17
  4. Step 4: Simplify right side
    280,213,704.11x = 58,947,547,195,292,864
  5. Step 5: Solve for x
    x = 58,947,547,195,292,864/280,213,704.11
  6. Step 6: Final answer
    x = 210,366,396.54

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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.