Home / 279,886,905.11-386,383,764.08-174,074,426.75

Finding the Fourth Proportional to 279,886,905.11, 386,383,764.08 and 174,074,426.75

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Solution

The fourth proportional to 279,886,905.11, 386,383,764.08 and 174,074,426.75 is: 240,309,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,886,905.11 : 386,383,764.08 = 174,074,426.75 : x
  2. Step 2: Convert to fraction form
    279,886,905.11/386,383,764.08 = 174,074,426.75/x
  3. Step 3: Cross multiply
    279,886,905.11x = 386,383,764.08 × 174,074,426.75
  4. Step 4: Simplify right side
    279,886,905.11x = 67,259,532,236,862,864
  5. Step 5: Solve for x
    x = 67,259,532,236,862,864/279,886,905.11
  6. Step 6: Final answer
    x = 240,309,678.69

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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.