Home / 8,167,809.60-12,251,714.40-7,286,011.20

Finding the Fourth Proportional to 8,167,809.60, 12,251,714.40 and 7,286,011.20

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Solution

The fourth proportional to 8,167,809.60, 12,251,714.40 and 7,286,011.20 is: 10,929,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167,809.60 : 12,251,714.40 = 7,286,011.20 : x
  2. Step 2: Convert to fraction form
    8,167,809.60/12,251,714.40 = 7,286,011.20/x
  3. Step 3: Cross multiply
    8,167,809.60x = 12,251,714.40 × 7,286,011.20
  4. Step 4: Simplify right side
    8,167,809.60x = 89,266,128,337,601.28
  5. Step 5: Solve for x
    x = 89,266,128,337,601.28/8,167,809.60
  6. Step 6: Final answer
    x = 10,929,016.80

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1.5x scale

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.