Home / 331,331,000.80-496,996,501.20-280,312,664.80

Finding the Fourth Proportional to 331,331,000.80, 496,996,501.20 and 280,312,664.80

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Solution

The fourth proportional to 331,331,000.80, 496,996,501.20 and 280,312,664.80 is: 420,468,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,331,000.80 : 496,996,501.20 = 280,312,664.80 : x
  2. Step 2: Convert to fraction form
    331,331,000.80/496,996,501.20 = 280,312,664.80/x
  3. Step 3: Cross multiply
    331,331,000.80x = 496,996,501.20 × 280,312,664.80
  4. Step 4: Simplify right side
    331,331,000.80x = 139,314,413,647,648,400
  5. Step 5: Solve for x
    x = 139,314,413,647,648,400/331,331,000.80
  6. Step 6: Final answer
    x = 420,468,997.20

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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.