Home / 22,019,940.70-33,029,911.05-21,138,142.30

Finding the Fourth Proportional to 22,019,940.70, 33,029,911.05 and 21,138,142.30

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Solution

The fourth proportional to 22,019,940.70, 33,029,911.05 and 21,138,142.30 is: 31,707,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019,940.70 : 33,029,911.05 = 21,138,142.30 : x
  2. Step 2: Convert to fraction form
    22,019,940.70/33,029,911.05 = 21,138,142.30/x
  3. Step 3: Cross multiply
    22,019,940.70x = 33,029,911.05 × 21,138,142.30
  4. Step 4: Simplify right side
    22,019,940.70x = 698,190,959,931,242.50
  5. Step 5: Solve for x
    x = 698,190,959,931,242.50/22,019,940.70
  6. Step 6: Final answer
    x = 31,707,213.45

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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.