Home / 431,592,766.80-647,389,150.20-158,928,104.40

Finding the Fourth Proportional to 431,592,766.80, 647,389,150.20 and 158,928,104.40

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Solution

The fourth proportional to 431,592,766.80, 647,389,150.20 and 158,928,104.40 is: 238,392,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,592,766.80 : 647,389,150.20 = 158,928,104.40 : x
  2. Step 2: Convert to fraction form
    431,592,766.80/647,389,150.20 = 158,928,104.40/x
  3. Step 3: Cross multiply
    431,592,766.80x = 647,389,150.20 × 158,928,104.40
  4. Step 4: Simplify right side
    431,592,766.80x = 102,888,330,450,412,896
  5. Step 5: Solve for x
    x = 102,888,330,450,412,896/431,592,766.80
  6. Step 6: Final answer
    x = 238,392,156.60

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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.