Home / 259,852,519.19-389,651,232.39-128,543,080.61

Finding the Fourth Proportional to 259,852,519.19, 389,651,232.39 and 128,543,080.61

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Solution

The fourth proportional to 259,852,519.19, 389,651,232.39 and 128,543,080.61 is: 192,751,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,852,519.19 : 389,651,232.39 = 128,543,080.61 : x
  2. Step 2: Convert to fraction form
    259,852,519.19/389,651,232.39 = 128,543,080.61/x
  3. Step 3: Cross multiply
    259,852,519.19x = 389,651,232.39 × 128,543,080.61
  4. Step 4: Simplify right side
    259,852,519.19x = 50,086,969,772,945,360
  5. Step 5: Solve for x
    x = 50,086,969,772,945,360/259,852,519.19
  6. Step 6: Final answer
    x = 192,751,526.64

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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.