Home / 87,345,226.80-131,017,840.20-67,189,834.80

Finding the Fourth Proportional to 87,345,226.80, 131,017,840.20 and 67,189,834.80

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Solution

The fourth proportional to 87,345,226.80, 131,017,840.20 and 67,189,834.80 is: 100,784,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345,226.80 : 131,017,840.20 = 67,189,834.80 : x
  2. Step 2: Convert to fraction form
    87,345,226.80/131,017,840.20 = 67,189,834.80/x
  3. Step 3: Cross multiply
    87,345,226.80x = 131,017,840.20 × 67,189,834.80
  4. Step 4: Simplify right side
    87,345,226.80x = 8,803,067,038,890,799
  5. Step 5: Solve for x
    x = 8,803,067,038,890,799/87,345,226.80
  6. Step 6: Final answer
    x = 100,784,752.20

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1.5x scale

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.