Home / 619,458,107.76-855,032,708.16-404,907,919.20

Finding the Fourth Proportional to 619,458,107.76, 855,032,708.16 and 404,907,919.20

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Solution

The fourth proportional to 619,458,107.76, 855,032,708.16 and 404,907,919.20 is: 558,890,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,458,107.76 : 855,032,708.16 = 404,907,919.20 : x
  2. Step 2: Convert to fraction form
    619,458,107.76/855,032,708.16 = 404,907,919.20/x
  3. Step 3: Cross multiply
    619,458,107.76x = 855,032,708.16 × 404,907,919.20
  4. Step 4: Simplify right side
    619,458,107.76x = 346,209,514,709,006,464
  5. Step 5: Solve for x
    x = 346,209,514,709,006,464/619,458,107.76
  6. Step 6: Final answer
    x = 558,890,924.78

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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.