Home / 82,441,856.70-123,662,785.05-80,552,288.70

Finding the Fourth Proportional to 82,441,856.70, 123,662,785.05 and 80,552,288.70

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Solution

The fourth proportional to 82,441,856.70, 123,662,785.05 and 80,552,288.70 is: 120,828,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,441,856.70 : 123,662,785.05 = 80,552,288.70 : x
  2. Step 2: Convert to fraction form
    82,441,856.70/123,662,785.05 = 80,552,288.70/x
  3. Step 3: Cross multiply
    82,441,856.70x = 123,662,785.05 × 80,552,288.70
  4. Step 4: Simplify right side
    82,441,856.70x = 9,961,320,362,793,644
  5. Step 5: Solve for x
    x = 9,961,320,362,793,644/82,441,856.70
  6. Step 6: Final answer
    x = 120,828,433.05

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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.