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Finding the Fourth Proportional to 8,668,530.56, 11,962,660.08 and 5,230,107.20

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Solution

The fourth proportional to 8,668,530.56, 11,962,660.08 and 5,230,107.20 is: 7,217,600.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668,530.56 : 11,962,660.08 = 5,230,107.20 : x
  2. Step 2: Convert to fraction form
    8,668,530.56/11,962,660.08 = 5,230,107.20/x
  3. Step 3: Cross multiply
    8,668,530.56x = 11,962,660.08 × 5,230,107.20
  4. Step 4: Simplify right side
    8,668,530.56x = 62,565,994,615,560.58
  5. Step 5: Solve for x
    x = 62,565,994,615,560.58/8,668,530.56
  6. Step 6: Final answer
    x = 7,217,600.97

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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.