Home / 839,829,731.80-1,259,744,597.70-722,928,458.20

Finding the Fourth Proportional to 839,829,731.80, 1,259,744,597.70 and 722,928,458.20

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Solution

The fourth proportional to 839,829,731.80, 1,259,744,597.70 and 722,928,458.20 is: 1,084,392,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,829,731.80 : 1,259,744,597.70 = 722,928,458.20 : x
  2. Step 2: Convert to fraction form
    839,829,731.80/1,259,744,597.70 = 722,928,458.20/x
  3. Step 3: Cross multiply
    839,829,731.80x = 1,259,744,597.70 × 722,928,458.20
  4. Step 4: Simplify right side
    839,829,731.80x = 910,705,219,741,040,384
  5. Step 5: Solve for x
    x = 910,705,219,741,040,384/839,829,731.80
  6. Step 6: Final answer
    x = 1,084,392,687.30

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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.