Home / 400,609,090.40-552,843,791.28-221,995,962.80

Finding the Fourth Proportional to 400,609,090.40, 552,843,791.28 and 221,995,962.80

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Solution

The fourth proportional to 400,609,090.40, 552,843,791.28 and 221,995,962.80 is: 306,356,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,609,090.40 : 552,843,791.28 = 221,995,962.80 : x
  2. Step 2: Convert to fraction form
    400,609,090.40/552,843,791.28 = 221,995,962.80/x
  3. Step 3: Cross multiply
    400,609,090.40x = 552,843,791.28 × 221,995,962.80
  4. Step 4: Simplify right side
    400,609,090.40x = 122,729,089,723,205,840
  5. Step 5: Solve for x
    x = 122,729,089,723,205,840/400,609,090.40
  6. Step 6: Final answer
    x = 306,356,227.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.