Home / 18,933,922.62-28,371,981.51-11,242,421.01

Finding the Fourth Proportional to 18,933,922.62, 28,371,981.51 and 11,242,421.01

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Solution

The fourth proportional to 18,933,922.62, 28,371,981.51 and 11,242,421.01 is: 16,846,470.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933,922.62 : 28,371,981.51 = 11,242,421.01 : x
  2. Step 2: Convert to fraction form
    18,933,922.62/28,371,981.51 = 11,242,421.01/x
  3. Step 3: Cross multiply
    18,933,922.62x = 28,371,981.51 × 11,242,421.01
  4. Step 4: Simplify right side
    18,933,922.62x = 318,969,761,023,355.56
  5. Step 5: Solve for x
    x = 318,969,761,023,355.56/18,933,922.62
  6. Step 6: Final answer
    x = 16,846,470.09

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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.