Home / 80,256,002.40-120,384,003.60-59,818,600.80

Finding the Fourth Proportional to 80,256,002.40, 120,384,003.60 and 59,818,600.80

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Solution

The fourth proportional to 80,256,002.40, 120,384,003.60 and 59,818,600.80 is: 89,727,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,256,002.40 : 120,384,003.60 = 59,818,600.80 : x
  2. Step 2: Convert to fraction form
    80,256,002.40/120,384,003.60 = 59,818,600.80/x
  3. Step 3: Cross multiply
    80,256,002.40x = 120,384,003.60 × 59,818,600.80
  4. Step 4: Simplify right side
    80,256,002.40x = 7,201,202,654,054,162
  5. Step 5: Solve for x
    x = 7,201,202,654,054,162/80,256,002.40
  6. Step 6: Final answer
    x = 89,727,901.20

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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.