Home / 18,620,340.59-25,695,667.05-10,780,183.41

Finding the Fourth Proportional to 18,620,340.59, 25,695,667.05 and 10,780,183.41

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Solution

The fourth proportional to 18,620,340.59, 25,695,667.05 and 10,780,183.41 is: 14,876,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620,340.59 : 25,695,667.05 = 10,780,183.41 : x
  2. Step 2: Convert to fraction form
    18,620,340.59/25,695,667.05 = 10,780,183.41/x
  3. Step 3: Cross multiply
    18,620,340.59x = 25,695,667.05 × 10,780,183.41
  4. Step 4: Simplify right side
    18,620,340.59x = 277,004,003,641,293.66
  5. Step 5: Solve for x
    x = 277,004,003,641,293.66/18,620,340.59
  6. Step 6: Final answer
    x = 14,876,419.82

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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.