Home / 86,940,031.20-130,425,793.20-43,700,416.80

Finding the Fourth Proportional to 86,940,031.20, 130,425,793.20 and 43,700,416.80

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Solution

The fourth proportional to 86,940,031.20, 130,425,793.20 and 43,700,416.80 is: 65,558,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,940,031.20 : 130,425,793.20 = 43,700,416.80 : x
  2. Step 2: Convert to fraction form
    86,940,031.20/130,425,793.20 = 43,700,416.80/x
  3. Step 3: Cross multiply
    86,940,031.20x = 130,425,793.20 × 43,700,416.80
  4. Step 4: Simplify right side
    86,940,031.20x = 5,699,661,524,310,606
  5. Step 5: Solve for x
    x = 5,699,661,524,310,606/86,940,031.20
  6. Step 6: Final answer
    x = 65,558,540.13

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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.