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Finding the Fourth Proportional to 79,963,714.80, 119,945,571.30 and 19,379,440.80

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Solution

The fourth proportional to 79,963,714.80, 119,945,571.30 and 19,379,440.80 is: 29,069,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,963,714.80 : 119,945,571.30 = 19,379,440.80 : x
  2. Step 2: Convert to fraction form
    79,963,714.80/119,945,571.30 = 19,379,440.80/x
  3. Step 3: Cross multiply
    79,963,714.80x = 119,945,571.30 × 19,379,440.80
  4. Step 4: Simplify right side
    79,963,714.80x = 2,324,478,098,230,529
  5. Step 5: Solve for x
    x = 2,324,478,098,230,529/79,963,714.80
  6. Step 6: Final answer
    x = 29,069,160.98

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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.