Home / 89,408,786.40-134,006,891.40-80,268,001.20

Finding the Fourth Proportional to 89,408,786.40, 134,006,891.40 and 80,268,001.20

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Solution

The fourth proportional to 89,408,786.40, 134,006,891.40 and 80,268,001.20 is: 120,306,580.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,408,786.40 : 134,006,891.40 = 80,268,001.20 : x
  2. Step 2: Convert to fraction form
    89,408,786.40/134,006,891.40 = 80,268,001.20/x
  3. Step 3: Cross multiply
    89,408,786.40x = 134,006,891.40 × 80,268,001.20
  4. Step 4: Simplify right side
    89,408,786.40x = 10,756,465,319,703,470
  5. Step 5: Solve for x
    x = 10,756,465,319,703,470/89,408,786.40
  6. Step 6: Final answer
    x = 120,306,580.07

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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.