Home / 409,200,174.78-564,696,467.31-221,028,467.49

Finding the Fourth Proportional to 409,200,174.78, 564,696,467.31 and 221,028,467.49

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Solution

The fourth proportional to 409,200,174.78, 564,696,467.31 and 221,028,467.49 is: 305,019,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,200,174.78 : 564,696,467.31 = 221,028,467.49 : x
  2. Step 2: Convert to fraction form
    409,200,174.78/564,696,467.31 = 221,028,467.49/x
  3. Step 3: Cross multiply
    409,200,174.78x = 564,696,467.31 × 221,028,467.49
  4. Step 4: Simplify right side
    409,200,174.78x = 124,813,994,765,470,944
  5. Step 5: Solve for x
    x = 124,813,994,765,470,944/409,200,174.78
  6. Step 6: Final answer
    x = 305,019,407.26

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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.