Home / 400,609,032.12-552,843,710.85-221,995,904.38

Finding the Fourth Proportional to 400,609,032.12, 552,843,710.85 and 221,995,904.38

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Solution

The fourth proportional to 400,609,032.12, 552,843,710.85 and 221,995,904.38 is: 306,356,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,609,032.12 : 552,843,710.85 = 221,995,904.38 : x
  2. Step 2: Convert to fraction form
    400,609,032.12/552,843,710.85 = 221,995,904.38/x
  3. Step 3: Cross multiply
    400,609,032.12x = 552,843,710.85 × 221,995,904.38
  4. Step 4: Simplify right side
    400,609,032.12x = 122,729,039,569,141,504
  5. Step 5: Solve for x
    x = 122,729,039,569,141,504/400,609,032.12
  6. Step 6: Final answer
    x = 306,356,147.09

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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.