Home / 13,191,191.80-19,786,787.70-11,868,494.20

Finding the Fourth Proportional to 13,191,191.80, 19,786,787.70 and 11,868,494.20

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Solution

The fourth proportional to 13,191,191.80, 19,786,787.70 and 11,868,494.20 is: 17,802,741.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,191.80 : 19,786,787.70 = 11,868,494.20 : x
  2. Step 2: Convert to fraction form
    13,191,191.80/19,786,787.70 = 11,868,494.20/x
  3. Step 3: Cross multiply
    13,191,191.80x = 19,786,787.70 × 11,868,494.20
  4. Step 4: Simplify right side
    13,191,191.80x = 234,839,375,054,081.31
  5. Step 5: Solve for x
    x = 234,839,375,054,081.31/13,191,191.80
  6. Step 6: Final answer
    x = 17,802,741.30

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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.