Home / 254,183,896.80-381,340,799.10-81,662,401.80

Finding the Fourth Proportional to 254,183,896.80, 381,340,799.10 and 81,662,401.80

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Solution

The fourth proportional to 254,183,896.80, 381,340,799.10 and 81,662,401.80 is: 122,514,470.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,183,896.80 : 381,340,799.10 = 81,662,401.80 : x
  2. Step 2: Convert to fraction form
    254,183,896.80/381,340,799.10 = 81,662,401.80/x
  3. Step 3: Cross multiply
    254,183,896.80x = 381,340,799.10 × 81,662,401.80
  4. Step 4: Simplify right side
    254,183,896.80x = 31,141,205,558,837,280
  5. Step 5: Solve for x
    x = 31,141,205,558,837,280/254,183,896.80
  6. Step 6: Final answer
    x = 122,514,470.63

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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.