Home / 266,780,425.20-400,170,637.80-221,430,793.20

Finding the Fourth Proportional to 266,780,425.20, 400,170,637.80 and 221,430,793.20

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Solution

The fourth proportional to 266,780,425.20, 400,170,637.80 and 221,430,793.20 is: 332,146,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,780,425.20 : 400,170,637.80 = 221,430,793.20 : x
  2. Step 2: Convert to fraction form
    266,780,425.20/400,170,637.80 = 221,430,793.20/x
  3. Step 3: Cross multiply
    266,780,425.20x = 400,170,637.80 × 221,430,793.20
  4. Step 4: Simplify right side
    266,780,425.20x = 88,610,101,743,403,904
  5. Step 5: Solve for x
    x = 88,610,101,743,403,904/266,780,425.20
  6. Step 6: Final answer
    x = 332,146,189.80

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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.