Home / 579,919,513.20-869,879,269.80-321,930,495.60

Finding the Fourth Proportional to 579,919,513.20, 869,879,269.80 and 321,930,495.60

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Solution

The fourth proportional to 579,919,513.20, 869,879,269.80 and 321,930,495.60 is: 482,895,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,919,513.20 : 869,879,269.80 = 321,930,495.60 : x
  2. Step 2: Convert to fraction form
    579,919,513.20/869,879,269.80 = 321,930,495.60/x
  3. Step 3: Cross multiply
    579,919,513.20x = 869,879,269.80 × 321,930,495.60
  4. Step 4: Simplify right side
    579,919,513.20x = 280,040,664,438,880,128
  5. Step 5: Solve for x
    x = 280,040,664,438,880,128/579,919,513.20
  6. Step 6: Final answer
    x = 482,895,743.40

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1.5x scale

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.