Home / 738,619,367.78-1,019,318,891.09-404,084,129.91

Finding the Fourth Proportional to 738,619,367.78, 1,019,318,891.09 and 404,084,129.91

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Solution

The fourth proportional to 738,619,367.78, 1,019,318,891.09 and 404,084,129.91 is: 557,649,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,619,367.78 : 1,019,318,891.09 = 404,084,129.91 : x
  2. Step 2: Convert to fraction form
    738,619,367.78/1,019,318,891.09 = 404,084,129.91/x
  3. Step 3: Cross multiply
    738,619,367.78x = 1,019,318,891.09 × 404,084,129.91
  4. Step 4: Simplify right side
    738,619,367.78x = 411,890,587,204,908,352
  5. Step 5: Solve for x
    x = 411,890,587,204,908,352/738,619,367.78
  6. Step 6: Final answer
    x = 557,649,318.68

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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.