Home / 87,936,190.20-131,904,285.30-78,194,417.40

Finding the Fourth Proportional to 87,936,190.20, 131,904,285.30 and 78,194,417.40

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Solution

The fourth proportional to 87,936,190.20, 131,904,285.30 and 78,194,417.40 is: 117,291,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936,190.20 : 131,904,285.30 = 78,194,417.40 : x
  2. Step 2: Convert to fraction form
    87,936,190.20/131,904,285.30 = 78,194,417.40/x
  3. Step 3: Cross multiply
    87,936,190.20x = 131,904,285.30 × 78,194,417.40
  4. Step 4: Simplify right side
    87,936,190.20x = 10,314,178,741,596,884
  5. Step 5: Solve for x
    x = 10,314,178,741,596,884/87,936,190.20
  6. Step 6: Final answer
    x = 117,291,626.10

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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.