Home / 87,078,548.38-120,141,339.20-49,395,506.40

Finding the Fourth Proportional to 87,078,548.38, 120,141,339.20 and 49,395,506.40

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Solution

The fourth proportional to 87,078,548.38, 120,141,339.20 and 49,395,506.40 is: 68,150,450.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,078,548.38 : 120,141,339.20 = 49,395,506.40 : x
  2. Step 2: Convert to fraction form
    87,078,548.38/120,141,339.20 = 49,395,506.40/x
  3. Step 3: Cross multiply
    87,078,548.38x = 120,141,339.20 × 49,395,506.40
  4. Step 4: Simplify right side
    87,078,548.38x = 5,934,442,289,358,171
  5. Step 5: Solve for x
    x = 5,934,442,289,358,171/87,078,548.38
  6. Step 6: Final answer
    x = 68,150,450.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.