Home / 323,784,008.85-485,676,013.28-81,446,912.85

Finding the Fourth Proportional to 323,784,008.85, 485,676,013.28 and 81,446,912.85

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Solution

The fourth proportional to 323,784,008.85, 485,676,013.28 and 81,446,912.85 is: 122,170,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,784,008.85 : 485,676,013.28 = 81,446,912.85 : x
  2. Step 2: Convert to fraction form
    323,784,008.85/485,676,013.28 = 81,446,912.85/x
  3. Step 3: Cross multiply
    323,784,008.85x = 485,676,013.28 × 81,446,912.85
  4. Step 4: Simplify right side
    323,784,008.85x = 39,556,811,926,544,360
  5. Step 5: Solve for x
    x = 39,556,811,926,544,360/323,784,008.85
  6. Step 6: Final answer
    x = 122,170,369.28

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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.