Home / 202,718,783.72-279,772,772.36-123,339,480.57

Finding the Fourth Proportional to 202,718,783.72, 279,772,772.36 and 123,339,480.57

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Solution

The fourth proportional to 202,718,783.72, 279,772,772.36 and 123,339,480.57 is: 170,221,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,718,783.72 : 279,772,772.36 = 123,339,480.57 : x
  2. Step 2: Convert to fraction form
    202,718,783.72/279,772,772.36 = 123,339,480.57/x
  3. Step 3: Cross multiply
    202,718,783.72x = 279,772,772.36 × 123,339,480.57
  4. Step 4: Simplify right side
    202,718,783.72x = 34,507,028,420,511,252
  5. Step 5: Solve for x
    x = 34,507,028,420,511,252/202,718,783.72
  6. Step 6: Final answer
    x = 170,221,169.38

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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.