Home / 431,712,016.80-647,568,025.20-108,595,888.80

Finding the Fourth Proportional to 431,712,016.80, 647,568,025.20 and 108,595,888.80

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Solution

The fourth proportional to 431,712,016.80, 647,568,025.20 and 108,595,888.80 is: 162,893,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,712,016.80 : 647,568,025.20 = 108,595,888.80 : x
  2. Step 2: Convert to fraction form
    431,712,016.80/647,568,025.20 = 108,595,888.80/x
  3. Step 3: Cross multiply
    431,712,016.80x = 647,568,025.20 × 108,595,888.80
  4. Step 4: Simplify right side
    431,712,016.80x = 70,323,225,255,054,800
  5. Step 5: Solve for x
    x = 70,323,225,255,054,800/431,712,016.80
  6. Step 6: Final answer
    x = 162,893,833.20

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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.