Home / 65,408,072.20-98,112,108.30-19,963,961.80

Finding the Fourth Proportional to 65,408,072.20, 98,112,108.30 and 19,963,961.80

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Solution

The fourth proportional to 65,408,072.20, 98,112,108.30 and 19,963,961.80 is: 29,945,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,408,072.20 : 98,112,108.30 = 19,963,961.80 : x
  2. Step 2: Convert to fraction form
    65,408,072.20/98,112,108.30 = 19,963,961.80/x
  3. Step 3: Cross multiply
    65,408,072.20x = 98,112,108.30 × 19,963,961.80
  4. Step 4: Simplify right side
    65,408,072.20x = 1,958,706,382,218,663
  5. Step 5: Solve for x
    x = 1,958,706,382,218,663/65,408,072.20
  6. Step 6: Final answer
    x = 29,945,942.70

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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.