Home / 18,795,387.20-28,193,080.80-11,237,115.20

Finding the Fourth Proportional to 18,795,387.20, 28,193,080.80 and 11,237,115.20

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Solution

The fourth proportional to 18,795,387.20, 28,193,080.80 and 11,237,115.20 is: 16,855,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795,387.20 : 28,193,080.80 = 11,237,115.20 : x
  2. Step 2: Convert to fraction form
    18,795,387.20/28,193,080.80 = 11,237,115.20/x
  3. Step 3: Cross multiply
    18,795,387.20x = 28,193,080.80 × 11,237,115.20
  4. Step 4: Simplify right side
    18,795,387.20x = 316,808,896,792,508.12
  5. Step 5: Solve for x
    x = 316,808,896,792,508.12/18,795,387.20
  6. Step 6: Final answer
    x = 16,855,672.80

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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.