Home / 12,752,910.80-19,134,492.60-5,180,469.20

Finding the Fourth Proportional to 12,752,910.80, 19,134,492.60 and 5,180,469.20

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Solution

The fourth proportional to 12,752,910.80, 19,134,492.60 and 5,180,469.20 is: 7,772,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752,910.80 : 19,134,492.60 = 5,180,469.20 : x
  2. Step 2: Convert to fraction form
    12,752,910.80/19,134,492.60 = 5,180,469.20/x
  3. Step 3: Cross multiply
    12,752,910.80x = 19,134,492.60 × 5,180,469.20
  4. Step 4: Simplify right side
    12,752,910.80x = 99,125,649,571,927.94
  5. Step 5: Solve for x
    x = 99,125,649,571,927.94/12,752,910.80
  6. Step 6: Final answer
    x = 7,772,786.24

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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.