Home / 80,743,819.40-121,143,722.70-35,338,200.20

Finding the Fourth Proportional to 80,743,819.40, 121,143,722.70 and 35,338,200.20

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Solution

The fourth proportional to 80,743,819.40, 121,143,722.70 and 35,338,200.20 is: 53,019,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,743,819.40 : 121,143,722.70 = 35,338,200.20 : x
  2. Step 2: Convert to fraction form
    80,743,819.40/121,143,722.70 = 35,338,200.20/x
  3. Step 3: Cross multiply
    80,743,819.40x = 121,143,722.70 × 35,338,200.20
  4. Step 4: Simplify right side
    80,743,819.40x = 4,281,001,125,745,885
  5. Step 5: Solve for x
    x = 4,281,001,125,745,885/80,743,819.40
  6. Step 6: Final answer
    x = 53,019,551.93

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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.