Home / 13,612,972.96-20,400,209.52-7,550,375.84

Finding the Fourth Proportional to 13,612,972.96, 20,400,209.52 and 7,550,375.84

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Solution

The fourth proportional to 13,612,972.96, 20,400,209.52 and 7,550,375.84 is: 11,314,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,972.96 : 20,400,209.52 = 7,550,375.84 : x
  2. Step 2: Convert to fraction form
    13,612,972.96/20,400,209.52 = 7,550,375.84/x
  3. Step 3: Cross multiply
    13,612,972.96x = 20,400,209.52 × 7,550,375.84
  4. Step 4: Simplify right side
    13,612,972.96x = 154,029,249,090,746
  5. Step 5: Solve for x
    x = 154,029,249,090,746/13,612,972.96
  6. Step 6: Final answer
    x = 11,314,886.88

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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.