Home / 12,780,212.70-19,163,320.65-5,198,612.70

Finding the Fourth Proportional to 12,780,212.70, 19,163,320.65 and 5,198,612.70

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Solution

The fourth proportional to 12,780,212.70, 19,163,320.65 and 5,198,612.70 is: 7,795,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,212.70 : 19,163,320.65 = 5,198,612.70 : x
  2. Step 2: Convert to fraction form
    12,780,212.70/19,163,320.65 = 5,198,612.70/x
  3. Step 3: Cross multiply
    12,780,212.70x = 19,163,320.65 × 5,198,612.70
  4. Step 4: Simplify right side
    12,780,212.70x = 99,622,682,105,262.25
  5. Step 5: Solve for x
    x = 99,622,682,105,262.25/12,780,212.70
  6. Step 6: Final answer
    x = 7,795,072.31

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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.