Home / 510,208,296.40-704,109,745.94-287,204,367.88

Finding the Fourth Proportional to 510,208,296.40, 704,109,745.94 and 287,204,367.88

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Solution

The fourth proportional to 510,208,296.40, 704,109,745.94 and 287,204,367.88 is: 396,354,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,208,296.40 : 704,109,745.94 = 287,204,367.88 : x
  2. Step 2: Convert to fraction form
    510,208,296.40/704,109,745.94 = 287,204,367.88/x
  3. Step 3: Cross multiply
    510,208,296.40x = 704,109,745.94 × 287,204,367.88
  4. Step 4: Simplify right side
    510,208,296.40x = 202,223,394,500,845,120
  5. Step 5: Solve for x
    x = 202,223,394,500,845,120/510,208,296.40
  6. Step 6: Final answer
    x = 396,354,578.96

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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.