Home / 323,678,000.20-485,517,000.30-286,264,553.80

Finding the Fourth Proportional to 323,678,000.20, 485,517,000.30 and 286,264,553.80

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Solution

The fourth proportional to 323,678,000.20, 485,517,000.30 and 286,264,553.80 is: 429,396,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,678,000.20 : 485,517,000.30 = 286,264,553.80 : x
  2. Step 2: Convert to fraction form
    323,678,000.20/485,517,000.30 = 286,264,553.80/x
  3. Step 3: Cross multiply
    323,678,000.20x = 485,517,000.30 × 286,264,553.80
  4. Step 4: Simplify right side
    323,678,000.20x = 138,986,307,453,193,968
  5. Step 5: Solve for x
    x = 138,986,307,453,193,968/323,678,000.20
  6. Step 6: Final answer
    x = 429,396,830.70

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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.