Home / 19,929,200.40-29,907,797.40-12,758,173.20

Finding the Fourth Proportional to 19,929,200.40, 29,907,797.40 and 12,758,173.20

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Solution

The fourth proportional to 19,929,200.40, 29,907,797.40 and 12,758,173.20 is: 19,146,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929,200.40 : 29,907,797.40 = 12,758,173.20 : x
  2. Step 2: Convert to fraction form
    19,929,200.40/29,907,797.40 = 12,758,173.20/x
  3. Step 3: Cross multiply
    19,929,200.40x = 29,907,797.40 × 12,758,173.20
  4. Step 4: Simplify right side
    19,929,200.40x = 381,568,859,259,709.62
  5. Step 5: Solve for x
    x = 381,568,859,259,709.62/19,929,200.40
  6. Step 6: Final answer
    x = 19,146,220.20

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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.