Home / 12,870,633.60-19,305,655.20-6,479,169.60

Finding the Fourth Proportional to 12,870,633.60, 19,305,655.20 and 6,479,169.60

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Solution

The fourth proportional to 12,870,633.60, 19,305,655.20 and 6,479,169.60 is: 9,718,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870,633.60 : 19,305,655.20 = 6,479,169.60 : x
  2. Step 2: Convert to fraction form
    12,870,633.60/19,305,655.20 = 6,479,169.60/x
  3. Step 3: Cross multiply
    12,870,633.60x = 19,305,655.20 × 6,479,169.60
  4. Step 4: Simplify right side
    12,870,633.60x = 125,084,614,279,921.91
  5. Step 5: Solve for x
    x = 125,084,614,279,921.91/12,870,633.60
  6. Step 6: Final answer
    x = 9,718,605.79

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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.