Home / 400,431,258.70-552,599,557.22-221,817,882.90

Finding the Fourth Proportional to 400,431,258.70, 552,599,557.22 and 221,817,882.90

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Solution

The fourth proportional to 400,431,258.70, 552,599,557.22 and 221,817,882.90 is: 306,111,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,431,258.70 : 552,599,557.22 = 221,817,882.90 : x
  2. Step 2: Convert to fraction form
    400,431,258.70/552,599,557.22 = 221,817,882.90/x
  3. Step 3: Cross multiply
    400,431,258.70x = 552,599,557.22 × 221,817,882.90
  4. Step 4: Simplify right side
    400,431,258.70x = 122,576,463,874,017,824
  5. Step 5: Solve for x
    x = 122,576,463,874,017,824/400,431,258.70
  6. Step 6: Final answer
    x = 306,111,126.97

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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.