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Finding the Fourth Proportional to 443,234,855.80, 664,852,283.70 and 259,568,846.20

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Solution

The fourth proportional to 443,234,855.80, 664,852,283.70 and 259,568,846.20 is: 389,353,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,234,855.80 : 664,852,283.70 = 259,568,846.20 : x
  2. Step 2: Convert to fraction form
    443,234,855.80/664,852,283.70 = 259,568,846.20/x
  3. Step 3: Cross multiply
    443,234,855.80x = 664,852,283.70 × 259,568,846.20
  4. Step 4: Simplify right side
    443,234,855.80x = 172,574,940,173,444,064
  5. Step 5: Solve for x
    x = 172,574,940,173,444,064/443,234,855.80
  6. Step 6: Final answer
    x = 389,353,269.30

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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.