Home / 1,147,845,979.14-1,722,042,204.38-371,491,639.87

Finding the Fourth Proportional to 1,147,845,979.14, 1,722,042,204.38 and 371,491,639.87

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Solution

The fourth proportional to 1,147,845,979.14, 1,722,042,204.38 and 371,491,639.87 is: 557,325,890.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,845,979.14 : 1,722,042,204.38 = 371,491,639.87 : x
  2. Step 2: Convert to fraction form
    1,147,845,979.14/1,722,042,204.38 = 371,491,639.87/x
  3. Step 3: Cross multiply
    1,147,845,979.14x = 1,722,042,204.38 × 371,491,639.87
  4. Step 4: Simplify right side
    1,147,845,979.14x = 639,724,282,423,028,992
  5. Step 5: Solve for x
    x = 639,724,282,423,028,992/1,147,845,979.14
  6. Step 6: Final answer
    x = 557,325,890.45

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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.