Home / 205,680,959.30-308,449,694.39-90,602,725.16

Finding the Fourth Proportional to 205,680,959.30, 308,449,694.39 and 90,602,725.16

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Solution

The fourth proportional to 205,680,959.30, 308,449,694.39 and 90,602,725.16 is: 135,872,484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,680,959.30 : 308,449,694.39 = 90,602,725.16 : x
  2. Step 2: Convert to fraction form
    205,680,959.30/308,449,694.39 = 90,602,725.16/x
  3. Step 3: Cross multiply
    205,680,959.30x = 308,449,694.39 × 90,602,725.16
  4. Step 4: Simplify right side
    205,680,959.30x = 27,946,382,886,821,272
  5. Step 5: Solve for x
    x = 27,946,382,886,821,272/205,680,959.30
  6. Step 6: Final answer
    x = 135,872,484.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.