Home / 279,848,151.30-386,191,783.97-154,400,339.28

Finding the Fourth Proportional to 279,848,151.30, 386,191,783.97 and 154,400,339.28

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Solution

The fourth proportional to 279,848,151.30, 386,191,783.97 and 154,400,339.28 is: 213,073,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,848,151.30 : 386,191,783.97 = 154,400,339.28 : x
  2. Step 2: Convert to fraction form
    279,848,151.30/386,191,783.97 = 154,400,339.28/x
  3. Step 3: Cross multiply
    279,848,151.30x = 386,191,783.97 × 154,400,339.28
  4. Step 4: Simplify right side
    279,848,151.30x = 59,628,142,471,344,464
  5. Step 5: Solve for x
    x = 59,628,142,471,344,464/279,848,151.30
  6. Step 6: Final answer
    x = 213,073,204.86

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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.