Home / 12,544,769.72-18,814,909.86-7,982,265.71

Finding the Fourth Proportional to 12,544,769.72, 18,814,909.86 and 7,982,265.71

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Solution

The fourth proportional to 12,544,769.72, 18,814,909.86 and 7,982,265.71 is: 11,971,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544,769.72 : 18,814,909.86 = 7,982,265.71 : x
  2. Step 2: Convert to fraction form
    12,544,769.72/18,814,909.86 = 7,982,265.71/x
  3. Step 3: Cross multiply
    12,544,769.72x = 18,814,909.86 × 7,982,265.71
  4. Step 4: Simplify right side
    12,544,769.72x = 150,185,609,718,144.34
  5. Step 5: Solve for x
    x = 150,185,609,718,144.34/12,544,769.72
  6. Step 6: Final answer
    x = 11,971,970.24

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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.