Home / 12,687,612.20-17,508,435.76-6,886,269.39

Finding the Fourth Proportional to 12,687,612.20, 17,508,435.76 and 6,886,269.39

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Solution

The fourth proportional to 12,687,612.20, 17,508,435.76 and 6,886,269.39 is: 9,502,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,612.20 : 17,508,435.76 = 6,886,269.39 : x
  2. Step 2: Convert to fraction form
    12,687,612.20/17,508,435.76 = 6,886,269.39/x
  3. Step 3: Cross multiply
    12,687,612.20x = 17,508,435.76 × 6,886,269.39
  4. Step 4: Simplify right side
    12,687,612.20x = 120,567,805,240,869.39
  5. Step 5: Solve for x
    x = 120,567,805,240,869.39/12,687,612.20
  6. Step 6: Final answer
    x = 9,502,797.16

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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.