Home / 314,928,446.20-472,392,669.30-288,143,819.80

Finding the Fourth Proportional to 314,928,446.20, 472,392,669.30 and 288,143,819.80

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Solution

The fourth proportional to 314,928,446.20, 472,392,669.30 and 288,143,819.80 is: 432,215,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,446.20 : 472,392,669.30 = 288,143,819.80 : x
  2. Step 2: Convert to fraction form
    314,928,446.20/472,392,669.30 = 288,143,819.80/x
  3. Step 3: Cross multiply
    314,928,446.20x = 472,392,669.30 × 288,143,819.80
  4. Step 4: Simplify right side
    314,928,446.20x = 136,117,028,177,620,208
  5. Step 5: Solve for x
    x = 136,117,028,177,620,208/314,928,446.20
  6. Step 6: Final answer
    x = 432,215,729.70

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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.