Home / 89,337,947.70-134,006,921.55-80,268,021.30

Finding the Fourth Proportional to 89,337,947.70, 134,006,921.55 and 80,268,021.30

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Solution

The fourth proportional to 89,337,947.70, 134,006,921.55 and 80,268,021.30 is: 120,402,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,337,947.70 : 134,006,921.55 = 80,268,021.30 : x
  2. Step 2: Convert to fraction form
    89,337,947.70/134,006,921.55 = 80,268,021.30/x
  3. Step 3: Cross multiply
    89,337,947.70x = 134,006,921.55 × 80,268,021.30
  4. Step 4: Simplify right side
    89,337,947.70x = 10,756,470,433,322,828
  5. Step 5: Solve for x
    x = 10,756,470,433,322,828/89,337,947.70
  6. Step 6: Final answer
    x = 120,402,031.95

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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.