Home / 26,319,980.20-39,479,970.30-18,667,229.80

Finding the Fourth Proportional to 26,319,980.20, 39,479,970.30 and 18,667,229.80

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Solution

The fourth proportional to 26,319,980.20, 39,479,970.30 and 18,667,229.80 is: 28,000,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,319,980.20 : 39,479,970.30 = 18,667,229.80 : x
  2. Step 2: Convert to fraction form
    26,319,980.20/39,479,970.30 = 18,667,229.80/x
  3. Step 3: Cross multiply
    26,319,980.20x = 39,479,970.30 × 18,667,229.80
  4. Step 4: Simplify right side
    26,319,980.20x = 736,981,678,087,274.88
  5. Step 5: Solve for x
    x = 736,981,678,087,274.88/26,319,980.20
  6. Step 6: Final answer
    x = 28,000,844.70

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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.