Home / 13,278,843.90-19,886,334.33-7,581,800.70

Finding the Fourth Proportional to 13,278,843.90, 19,886,334.33 and 7,581,800.70

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Solution

The fourth proportional to 13,278,843.90, 19,886,334.33 and 7,581,800.70 is: 11,354,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278,843.90 : 19,886,334.33 = 7,581,800.70 : x
  2. Step 2: Convert to fraction form
    13,278,843.90/19,886,334.33 = 7,581,800.70/x
  3. Step 3: Cross multiply
    13,278,843.90x = 19,886,334.33 × 7,581,800.70
  4. Step 4: Simplify right side
    13,278,843.90x = 150,774,223,543,628.03
  5. Step 5: Solve for x
    x = 150,774,223,543,628.03/13,278,843.90
  6. Step 6: Final answer
    x = 11,354,469.16

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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.