Home / 279,825,911.28-386,157,600.69-154,383,394.23

Finding the Fourth Proportional to 279,825,911.28, 386,157,600.69 and 154,383,394.23

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Solution

The fourth proportional to 279,825,911.28, 386,157,600.69 and 154,383,394.23 is: 213,047,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,825,911.28 : 386,157,600.69 = 154,383,394.23 : x
  2. Step 2: Convert to fraction form
    279,825,911.28/386,157,600.69 = 154,383,394.23/x
  3. Step 3: Cross multiply
    279,825,911.28x = 386,157,600.69 × 154,383,394.23
  4. Step 4: Simplify right side
    279,825,911.28x = 59,616,321,101,656,240
  5. Step 5: Solve for x
    x = 59,616,321,101,656,240/279,825,911.28
  6. Step 6: Final answer
    x = 213,047,894.06

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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.