Home / 38,659,780.20-57,989,670.30-21,441,091.80

Finding the Fourth Proportional to 38,659,780.20, 57,989,670.30 and 21,441,091.80

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Solution

The fourth proportional to 38,659,780.20, 57,989,670.30 and 21,441,091.80 is: 32,161,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,659,780.20 : 57,989,670.30 = 21,441,091.80 : x
  2. Step 2: Convert to fraction form
    38,659,780.20/57,989,670.30 = 21,441,091.80/x
  3. Step 3: Cross multiply
    38,659,780.20x = 57,989,670.30 × 21,441,091.80
  4. Step 4: Simplify right side
    38,659,780.20x = 1,243,361,844,354,033.50
  5. Step 5: Solve for x
    x = 1,243,361,844,354,033.50/38,659,780.20
  6. Step 6: Final answer
    x = 32,161,637.70

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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.