Home / 266,078,786.80-398,944,969.80-238,869,007.60

Finding the Fourth Proportional to 266,078,786.80, 398,944,969.80 and 238,869,007.60

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Solution

The fourth proportional to 266,078,786.80, 398,944,969.80 and 238,869,007.60 is: 358,148,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,078,786.80 : 398,944,969.80 = 238,869,007.60 : x
  2. Step 2: Convert to fraction form
    266,078,786.80/398,944,969.80 = 238,869,007.60/x
  3. Step 3: Cross multiply
    266,078,786.80x = 398,944,969.80 × 238,869,007.60
  4. Step 4: Simplify right side
    266,078,786.80x = 95,295,589,023,137,968
  5. Step 5: Solve for x
    x = 95,295,589,023,137,968/266,078,786.80
  6. Step 6: Final answer
    x = 358,148,013.86

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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.