Home / 28,586,846.92-42,882,136.63-20,933,396.68

Finding the Fourth Proportional to 28,586,846.92, 42,882,136.63 and 20,933,396.68

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Solution

The fourth proportional to 28,586,846.92, 42,882,136.63 and 20,933,396.68 is: 31,401,461.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586,846.92 : 42,882,136.63 = 20,933,396.68 : x
  2. Step 2: Convert to fraction form
    28,586,846.92/42,882,136.63 = 20,933,396.68/x
  3. Step 3: Cross multiply
    28,586,846.92x = 42,882,136.63 × 20,933,396.68
  4. Step 4: Simplify right side
    28,586,846.92x = 897,668,776,561,748.38
  5. Step 5: Solve for x
    x = 897,668,776,561,748.38/28,586,846.92
  6. Step 6: Final answer
    x = 31,401,461.63

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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.