Home / 18,786,877.20-28,180,315.80-11,228,605.20

Finding the Fourth Proportional to 18,786,877.20, 28,180,315.80 and 11,228,605.20

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Solution

The fourth proportional to 18,786,877.20, 28,180,315.80 and 11,228,605.20 is: 16,842,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786,877.20 : 28,180,315.80 = 11,228,605.20 : x
  2. Step 2: Convert to fraction form
    18,786,877.20/28,180,315.80 = 11,228,605.20/x
  3. Step 3: Cross multiply
    18,786,877.20x = 28,180,315.80 × 11,228,605.20
  4. Step 4: Simplify right side
    18,786,877.20x = 316,425,640,529,522.12
  5. Step 5: Solve for x
    x = 316,425,640,529,522.12/18,786,877.20
  6. Step 6: Final answer
    x = 16,842,907.80

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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.