Home / 5,105,320.62-7,045,343.64-2,782,213.78

Finding the Fourth Proportional to 5,105,320.62, 7,045,343.64 and 2,782,213.78

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Solution

The fourth proportional to 5,105,320.62, 7,045,343.64 and 2,782,213.78 is: 3,839,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105,320.62 : 7,045,343.64 = 2,782,213.78 : x
  2. Step 2: Convert to fraction form
    5,105,320.62/7,045,343.64 = 2,782,213.78/x
  3. Step 3: Cross multiply
    5,105,320.62x = 7,045,343.64 × 2,782,213.78
  4. Step 4: Simplify right side
    5,105,320.62x = 19,601,652,160,043.36
  5. Step 5: Solve for x
    x = 19,601,652,160,043.36/5,105,320.62
  6. Step 6: Final answer
    x = 3,839,455.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.