Home / 12,620,824.80-18,931,237.20-11,874,328.80

Finding the Fourth Proportional to 12,620,824.80, 18,931,237.20 and 11,874,328.80

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Solution

The fourth proportional to 12,620,824.80, 18,931,237.20 and 11,874,328.80 is: 17,811,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620,824.80 : 18,931,237.20 = 11,874,328.80 : x
  2. Step 2: Convert to fraction form
    12,620,824.80/18,931,237.20 = 11,874,328.80/x
  3. Step 3: Cross multiply
    12,620,824.80x = 18,931,237.20 × 11,874,328.80
  4. Step 4: Simplify right side
    12,620,824.80x = 224,795,735,103,591.38
  5. Step 5: Solve for x
    x = 224,795,735,103,591.38/12,620,824.80
  6. Step 6: Final answer
    x = 17,811,493.20

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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.