Home / 579,919,563.20-869,879,344.80-321,930,545.60

Finding the Fourth Proportional to 579,919,563.20, 869,879,344.80 and 321,930,545.60

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Solution

The fourth proportional to 579,919,563.20, 869,879,344.80 and 321,930,545.60 is: 482,895,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,919,563.20 : 869,879,344.80 = 321,930,545.60 : x
  2. Step 2: Convert to fraction form
    579,919,563.20/869,879,344.80 = 321,930,545.60/x
  3. Step 3: Cross multiply
    579,919,563.20x = 869,879,344.80 × 321,930,545.60
  4. Step 4: Simplify right side
    579,919,563.20x = 280,040,732,077,634,528
  5. Step 5: Solve for x
    x = 280,040,732,077,634,528/579,919,563.20
  6. Step 6: Final answer
    x = 482,895,818.40

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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.