Home / 18,715,975.20-28,073,962.80-11,441,138.40

Finding the Fourth Proportional to 18,715,975.20, 28,073,962.80 and 11,441,138.40

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Solution

The fourth proportional to 18,715,975.20, 28,073,962.80 and 11,441,138.40 is: 17,161,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,975.20 : 28,073,962.80 = 11,441,138.40 : x
  2. Step 2: Convert to fraction form
    18,715,975.20/28,073,962.80 = 11,441,138.40/x
  3. Step 3: Cross multiply
    18,715,975.20x = 28,073,962.80 × 11,441,138.40
  4. Step 4: Simplify right side
    18,715,975.20x = 321,198,093,831,251.56
  5. Step 5: Solve for x
    x = 321,198,093,831,251.56/18,715,975.20
  6. Step 6: Final answer
    x = 17,161,707.60

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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.