Home / 13,206,207.60-19,785,691.80-8,151,613.20

Finding the Fourth Proportional to 13,206,207.60, 19,785,691.80 and 8,151,613.20

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Solution

The fourth proportional to 13,206,207.60, 19,785,691.80 and 8,151,613.20 is: 12,212,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,207.60 : 19,785,691.80 = 8,151,613.20 : x
  2. Step 2: Convert to fraction form
    13,206,207.60/19,785,691.80 = 8,151,613.20/x
  3. Step 3: Cross multiply
    13,206,207.60x = 19,785,691.80 × 8,151,613.20
  4. Step 4: Simplify right side
    13,206,207.60x = 161,285,306,448,011.78
  5. Step 5: Solve for x
    x = 161,285,306,448,011.78/13,206,207.60
  6. Step 6: Final answer
    x = 12,212,840.46

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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.