Home / 256,635,433.63-384,799,417.84-81,682,896.61

Finding the Fourth Proportional to 256,635,433.63, 384,799,417.84 and 81,682,896.61

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Solution

The fourth proportional to 256,635,433.63, 384,799,417.84 and 81,682,896.61 is: 122,475,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,635,433.63 : 384,799,417.84 = 81,682,896.61 : x
  2. Step 2: Convert to fraction form
    256,635,433.63/384,799,417.84 = 81,682,896.61/x
  3. Step 3: Cross multiply
    256,635,433.63x = 384,799,417.84 × 81,682,896.61
  4. Step 4: Simplify right side
    256,635,433.63x = 31,431,531,063,012,908
  5. Step 5: Solve for x
    x = 31,431,531,063,012,908/256,635,433.63
  6. Step 6: Final answer
    x = 122,475,414.32

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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.