Home / 579,917,767.20-869,876,650.80-321,928,749.60

Finding the Fourth Proportional to 579,917,767.20, 869,876,650.80 and 321,928,749.60

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Solution

The fourth proportional to 579,917,767.20, 869,876,650.80 and 321,928,749.60 is: 482,893,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,917,767.20 : 869,876,650.80 = 321,928,749.60 : x
  2. Step 2: Convert to fraction form
    579,917,767.20/869,876,650.80 = 321,928,749.60/x
  3. Step 3: Cross multiply
    579,917,767.20x = 869,876,650.80 × 321,928,749.60
  4. Step 4: Simplify right side
    579,917,767.20x = 280,038,302,498,279,840
  5. Step 5: Solve for x
    x = 280,038,302,498,279,840/579,917,767.20
  6. Step 6: Final answer
    x = 482,893,124.40

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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.