Home / 219,728,978.62-330,908,807.11-200,115,816.36

Finding the Fourth Proportional to 219,728,978.62, 330,908,807.11 and 200,115,816.36

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Solution

The fourth proportional to 219,728,978.62, 330,908,807.11 and 200,115,816.36 is: 301,371,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,728,978.62 : 330,908,807.11 = 200,115,816.36 : x
  2. Step 2: Convert to fraction form
    219,728,978.62/330,908,807.11 = 200,115,816.36/x
  3. Step 3: Cross multiply
    219,728,978.62x = 330,908,807.11 × 200,115,816.36
  4. Step 4: Simplify right side
    219,728,978.62x = 66,220,086,075,531,432
  5. Step 5: Solve for x
    x = 66,220,086,075,531,432/219,728,978.62
  6. Step 6: Final answer
    x = 301,371,655.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.