Home / 21,420,571.20-32,131,890.16-7,043,320.68

Finding the Fourth Proportional to 21,420,571.20, 32,131,890.16 and 7,043,320.68

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Solution

The fourth proportional to 21,420,571.20, 32,131,890.16 and 7,043,320.68 is: 10,565,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,571.20 : 32,131,890.16 = 7,043,320.68 : x
  2. Step 2: Convert to fraction form
    21,420,571.20/32,131,890.16 = 7,043,320.68/x
  3. Step 3: Cross multiply
    21,420,571.20x = 32,131,890.16 × 7,043,320.68
  4. Step 4: Simplify right side
    21,420,571.20x = 226,315,206,451,416.50
  5. Step 5: Solve for x
    x = 226,315,206,451,416.50/21,420,571.20
  6. Step 6: Final answer
    x = 10,565,320.80

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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.