Home / 279,111,387.75-418,667,054.08-74,634,148.59

Finding the Fourth Proportional to 279,111,387.75, 418,667,054.08 and 74,634,148.59

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Solution

The fourth proportional to 279,111,387.75, 418,667,054.08 and 74,634,148.59 is: 111,951,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,111,387.75 : 418,667,054.08 = 74,634,148.59 : x
  2. Step 2: Convert to fraction form
    279,111,387.75/418,667,054.08 = 74,634,148.59/x
  3. Step 3: Cross multiply
    279,111,387.75x = 418,667,054.08 × 74,634,148.59
  4. Step 4: Simplify right side
    279,111,387.75x = 31,246,859,123,944,284
  5. Step 5: Solve for x
    x = 31,246,859,123,944,284/279,111,387.75
  6. Step 6: Final answer
    x = 111,951,215.52

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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.