Home / 252,758,891.80-378,571,467.30-207,409,259.80

Finding the Fourth Proportional to 252,758,891.80, 378,571,467.30 and 207,409,259.80

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Solution

The fourth proportional to 252,758,891.80, 378,571,467.30 and 207,409,259.80 is: 310,648,726.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,758,891.80 : 378,571,467.30 = 207,409,259.80 : x
  2. Step 2: Convert to fraction form
    252,758,891.80/378,571,467.30 = 207,409,259.80/x
  3. Step 3: Cross multiply
    252,758,891.80x = 378,571,467.30 × 207,409,259.80
  4. Step 4: Simplify right side
    252,758,891.80x = 78,519,227,814,092,912
  5. Step 5: Solve for x
    x = 78,519,227,814,092,912/252,758,891.80
  6. Step 6: Final answer
    x = 310,648,726.36

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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.