Home / 12,880,418.80-19,320,628.20-11,597,551.60

Finding the Fourth Proportional to 12,880,418.80, 19,320,628.20 and 11,597,551.60

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Solution

The fourth proportional to 12,880,418.80, 19,320,628.20 and 11,597,551.60 is: 17,396,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,418.80 : 19,320,628.20 = 11,597,551.60 : x
  2. Step 2: Convert to fraction form
    12,880,418.80/19,320,628.20 = 11,597,551.60/x
  3. Step 3: Cross multiply
    12,880,418.80x = 19,320,628.20 × 11,597,551.60
  4. Step 4: Simplify right side
    12,880,418.80x = 224,071,982,493,915.09
  5. Step 5: Solve for x
    x = 224,071,982,493,915.09/12,880,418.80
  6. Step 6: Final answer
    x = 17,396,327.40

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1.5x scale

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.