Home / 125,966,363.20-188,949,544.80-115,216,820.80

Finding the Fourth Proportional to 125,966,363.20, 188,949,544.80 and 115,216,820.80

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Solution

The fourth proportional to 125,966,363.20, 188,949,544.80 and 115,216,820.80 is: 172,825,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,966,363.20 : 188,949,544.80 = 115,216,820.80 : x
  2. Step 2: Convert to fraction form
    125,966,363.20/188,949,544.80 = 115,216,820.80/x
  3. Step 3: Cross multiply
    125,966,363.20x = 188,949,544.80 × 115,216,820.80
  4. Step 4: Simplify right side
    125,966,363.20x = 21,770,165,843,463,172
  5. Step 5: Solve for x
    x = 21,770,165,843,463,172/125,966,363.20
  6. Step 6: Final answer
    x = 172,825,231.20

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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.