Home / 275,265,189.81-379,865,940.77-149,818,285.20

Finding the Fourth Proportional to 275,265,189.81, 379,865,940.77 and 149,818,285.20

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Solution

The fourth proportional to 275,265,189.81, 379,865,940.77 and 149,818,285.20 is: 206,749,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,265,189.81 : 379,865,940.77 = 149,818,285.20 : x
  2. Step 2: Convert to fraction form
    275,265,189.81/379,865,940.77 = 149,818,285.20/x
  3. Step 3: Cross multiply
    275,265,189.81x = 379,865,940.77 × 149,818,285.20
  4. Step 4: Simplify right side
    275,265,189.81x = 56,910,863,851,297,072
  5. Step 5: Solve for x
    x = 56,910,863,851,297,072/275,265,189.81
  6. Step 6: Final answer
    x = 206,749,222.06

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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.