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Finding the Fourth Proportional to 412,807,953.72, 619,213,204.26 and 101,915,605.56

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Solution

The fourth proportional to 412,807,953.72, 619,213,204.26 and 101,915,605.56 is: 152,873,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,807,953.72 : 619,213,204.26 = 101,915,605.56 : x
  2. Step 2: Convert to fraction form
    412,807,953.72/619,213,204.26 = 101,915,605.56/x
  3. Step 3: Cross multiply
    412,807,953.72x = 619,213,204.26 × 101,915,605.56
  4. Step 4: Simplify right side
    412,807,953.72x = 63,107,488,682,905,872
  5. Step 5: Solve for x
    x = 63,107,488,682,905,872/412,807,953.72
  6. Step 6: Final answer
    x = 152,873,722.79

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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.