Home / 18,886,588.20-28,329,882.30-12,084,143.40

Finding the Fourth Proportional to 18,886,588.20, 28,329,882.30 and 12,084,143.40

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Solution

The fourth proportional to 18,886,588.20, 28,329,882.30 and 12,084,143.40 is: 18,126,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886,588.20 : 28,329,882.30 = 12,084,143.40 : x
  2. Step 2: Convert to fraction form
    18,886,588.20/28,329,882.30 = 12,084,143.40/x
  3. Step 3: Cross multiply
    18,886,588.20x = 28,329,882.30 × 12,084,143.40
  4. Step 4: Simplify right side
    18,886,588.20x = 342,342,360,218,321.81
  5. Step 5: Solve for x
    x = 342,342,360,218,321.81/18,886,588.20
  6. Step 6: Final answer
    x = 18,126,215.10

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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.