Home / 87,563,936.40-131,345,904.60-55,315,309.20

Finding the Fourth Proportional to 87,563,936.40, 131,345,904.60 and 55,315,309.20

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Solution

The fourth proportional to 87,563,936.40, 131,345,904.60 and 55,315,309.20 is: 82,972,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563,936.40 : 131,345,904.60 = 55,315,309.20 : x
  2. Step 2: Convert to fraction form
    87,563,936.40/131,345,904.60 = 55,315,309.20/x
  3. Step 3: Cross multiply
    87,563,936.40x = 131,345,904.60 × 55,315,309.20
  4. Step 4: Simplify right side
    87,563,936.40x = 7,265,439,325,102,702
  5. Step 5: Solve for x
    x = 7,265,439,325,102,702/87,563,936.40
  6. Step 6: Final answer
    x = 82,972,963.80

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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.