Home / 81,186,896.79-112,040,280.56-45,903,943.97

Finding the Fourth Proportional to 81,186,896.79, 112,040,280.56 and 45,903,943.97

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Solution

The fourth proportional to 81,186,896.79, 112,040,280.56 and 45,903,943.97 is: 63,348,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,186,896.79 : 112,040,280.56 = 45,903,943.97 : x
  2. Step 2: Convert to fraction form
    81,186,896.79/112,040,280.56 = 45,903,943.97/x
  3. Step 3: Cross multiply
    81,186,896.79x = 112,040,280.56 × 45,903,943.97
  4. Step 4: Simplify right side
    81,186,896.79x = 5,143,090,761,499,087
  5. Step 5: Solve for x
    x = 5,143,090,761,499,087/81,186,896.79
  6. Step 6: Final answer
    x = 63,348,778.74

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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.