Home / 431,712,005.80-647,568,008.70-108,595,877.80

Finding the Fourth Proportional to 431,712,005.80, 647,568,008.70 and 108,595,877.80

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Solution

The fourth proportional to 431,712,005.80, 647,568,008.70 and 108,595,877.80 is: 162,893,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,712,005.80 : 647,568,008.70 = 108,595,877.80 : x
  2. Step 2: Convert to fraction form
    431,712,005.80/647,568,008.70 = 108,595,877.80/x
  3. Step 3: Cross multiply
    431,712,005.80x = 647,568,008.70 × 108,595,877.80
  4. Step 4: Simplify right side
    431,712,005.80x = 70,323,216,339,974,544
  5. Step 5: Solve for x
    x = 70,323,216,339,974,544/431,712,005.80
  6. Step 6: Final answer
    x = 162,893,816.70

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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.