Home / 18,219,696.95-25,143,178.05-9,959,793.68

Finding the Fourth Proportional to 18,219,696.95, 25,143,178.05 and 9,959,793.68

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Solution

The fourth proportional to 18,219,696.95, 25,143,178.05 and 9,959,793.68 is: 13,744,513.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219,696.95 : 25,143,178.05 = 9,959,793.68 : x
  2. Step 2: Convert to fraction form
    18,219,696.95/25,143,178.05 = 9,959,793.68/x
  3. Step 3: Cross multiply
    18,219,696.95x = 25,143,178.05 × 9,959,793.68
  4. Step 4: Simplify right side
    18,219,696.95x = 250,420,865,711,788.88
  5. Step 5: Solve for x
    x = 250,420,865,711,788.88/18,219,696.95
  6. Step 6: Final answer
    x = 13,744,513.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.