Home / 431,712,008.80-647,568,013.20-108,595,880.80

Finding the Fourth Proportional to 431,712,008.80, 647,568,013.20 and 108,595,880.80

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Solution

The fourth proportional to 431,712,008.80, 647,568,013.20 and 108,595,880.80 is: 162,893,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,712,008.80 : 647,568,013.20 = 108,595,880.80 : x
  2. Step 2: Convert to fraction form
    431,712,008.80/647,568,013.20 = 108,595,880.80/x
  3. Step 3: Cross multiply
    431,712,008.80x = 647,568,013.20 × 108,595,880.80
  4. Step 4: Simplify right side
    431,712,008.80x = 70,323,218,771,360,032
  5. Step 5: Solve for x
    x = 70,323,218,771,360,032/431,712,008.80
  6. Step 6: Final answer
    x = 162,893,821.20

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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.