Home / 6,778,481.28-10,167,804.16-1,986,267.72

Finding the Fourth Proportional to 6,778,481.28, 10,167,804.16 and 1,986,267.72

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Solution

The fourth proportional to 6,778,481.28, 10,167,804.16 and 1,986,267.72 is: 2,979,425.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778,481.28 : 10,167,804.16 = 1,986,267.72 : x
  2. Step 2: Convert to fraction form
    6,778,481.28/10,167,804.16 = 1,986,267.72/x
  3. Step 3: Cross multiply
    6,778,481.28x = 10,167,804.16 × 1,986,267.72
  4. Step 4: Simplify right side
    6,778,481.28x = 20,195,981,186,289.71
  5. Step 5: Solve for x
    x = 20,195,981,186,289.71/6,778,481.28
  6. Step 6: Final answer
    x = 2,979,425.68

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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.