Home / 728,938,103.22-1,005,933,930.75-411,465,176.37

Finding the Fourth Proportional to 728,938,103.22, 1,005,933,930.75 and 411,465,176.37

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Solution

The fourth proportional to 728,938,103.22, 1,005,933,930.75 and 411,465,176.37 is: 567,821,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,938,103.22 : 1,005,933,930.75 = 411,465,176.37 : x
  2. Step 2: Convert to fraction form
    728,938,103.22/1,005,933,930.75 = 411,465,176.37/x
  3. Step 3: Cross multiply
    728,938,103.22x = 1,005,933,930.75 × 411,465,176.37
  4. Step 4: Simplify right side
    728,938,103.22x = 413,906,782,232,616,128
  5. Step 5: Solve for x
    x = 413,906,782,232,616,128/728,938,103.22
  6. Step 6: Final answer
    x = 567,821,575.53

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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.