Home / 321,040,671-443,021,299.74-181,812,429.42

Finding the Fourth Proportional to 321,040,671, 443,021,299.74 and 181,812,429.42

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Solution

The fourth proportional to 321,040,671, 443,021,299.74 and 181,812,429.42 is: 250,892,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,040,671 : 443,021,299.74 = 181,812,429.42 : x
  2. Step 2: Convert to fraction form
    321,040,671/443,021,299.74 = 181,812,429.42/x
  3. Step 3: Cross multiply
    321,040,671x = 443,021,299.74 × 181,812,429.42
  4. Step 4: Simplify right side
    321,040,671x = 80,546,778,790,535,408
  5. Step 5: Solve for x
    x = 80,546,778,790,535,408/321,040,671
  6. Step 6: Final answer
    x = 250,892,756.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.