Home / 274,387,490.61-378,655,100.49-148,939,605.08

Finding the Fourth Proportional to 274,387,490.61, 378,655,100.49 and 148,939,605.08

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Solution

The fourth proportional to 274,387,490.61, 378,655,100.49 and 148,939,605.08 is: 205,536,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,387,490.61 : 378,655,100.49 = 148,939,605.08 : x
  2. Step 2: Convert to fraction form
    274,387,490.61/378,655,100.49 = 148,939,605.08/x
  3. Step 3: Cross multiply
    274,387,490.61x = 378,655,100.49 × 148,939,605.08
  4. Step 4: Simplify right side
    274,387,490.61x = 56,396,741,128,508,320
  5. Step 5: Solve for x
    x = 56,396,741,128,508,320/274,387,490.61
  6. Step 6: Final answer
    x = 205,536,852.29

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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.