Home / 1,338,444,718.70-2,007,667,078.05-418,319,581.10

Finding the Fourth Proportional to 1,338,444,718.70, 2,007,667,078.05 and 418,319,581.10

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Solution

The fourth proportional to 1,338,444,718.70, 2,007,667,078.05 and 418,319,581.10 is: 627,479,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,444,718.70 : 2,007,667,078.05 = 418,319,581.10 : x
  2. Step 2: Convert to fraction form
    1,338,444,718.70/2,007,667,078.05 = 418,319,581.10/x
  3. Step 3: Cross multiply
    1,338,444,718.70x = 2,007,667,078.05 × 418,319,581.10
  4. Step 4: Simplify right side
    1,338,444,718.70x = 839,846,451,078,137,088
  5. Step 5: Solve for x
    x = 839,846,451,078,137,088/1,338,444,718.70
  6. Step 6: Final answer
    x = 627,479,371.65

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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.