Home / 259,469,216.80-389,203,825.20-86,888,672.80

Finding the Fourth Proportional to 259,469,216.80, 389,203,825.20 and 86,888,672.80

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Solution

The fourth proportional to 259,469,216.80, 389,203,825.20 and 86,888,672.80 is: 130,333,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,469,216.80 : 389,203,825.20 = 86,888,672.80 : x
  2. Step 2: Convert to fraction form
    259,469,216.80/389,203,825.20 = 86,888,672.80/x
  3. Step 3: Cross multiply
    259,469,216.80x = 389,203,825.20 × 86,888,672.80
  4. Step 4: Simplify right side
    259,469,216.80x = 33,817,403,820,311,192
  5. Step 5: Solve for x
    x = 33,817,403,820,311,192/259,469,216.80
  6. Step 6: Final answer
    x = 130,333,009.20

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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.