Home / 209,302,689.74-313,982,765.59-71,091,192.11

Finding the Fourth Proportional to 209,302,689.74, 313,982,765.59 and 71,091,192.11

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Solution

The fourth proportional to 209,302,689.74, 313,982,765.59 and 71,091,192.11 is: 106,646,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,302,689.74 : 313,982,765.59 = 71,091,192.11 : x
  2. Step 2: Convert to fraction form
    209,302,689.74/313,982,765.59 = 71,091,192.11/x
  3. Step 3: Cross multiply
    209,302,689.74x = 313,982,765.59 × 71,091,192.11
  4. Step 4: Simplify right side
    209,302,689.74x = 22,321,409,107,787,784
  5. Step 5: Solve for x
    x = 22,321,409,107,787,784/209,302,689.74
  6. Step 6: Final answer
    x = 106,646,546.85

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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.