Home / 839,904,080.80-1,259,856,121.20-329,300,816.80

Finding the Fourth Proportional to 839,904,080.80, 1,259,856,121.20 and 329,300,816.80

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Solution

The fourth proportional to 839,904,080.80, 1,259,856,121.20 and 329,300,816.80 is: 493,951,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,904,080.80 : 1,259,856,121.20 = 329,300,816.80 : x
  2. Step 2: Convert to fraction form
    839,904,080.80/1,259,856,121.20 = 329,300,816.80/x
  3. Step 3: Cross multiply
    839,904,080.80x = 1,259,856,121.20 × 329,300,816.80
  4. Step 4: Simplify right side
    839,904,080.80x = 414,871,649,761,639,808
  5. Step 5: Solve for x
    x = 414,871,649,761,639,808/839,904,080.80
  6. Step 6: Final answer
    x = 493,951,225.20

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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.