Home / 71,100,778.59-98,127,053.91-40,162,940.37

Finding the Fourth Proportional to 71,100,778.59, 98,127,053.91 and 40,162,940.37

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Solution

The fourth proportional to 71,100,778.59, 98,127,053.91 and 40,162,940.37 is: 55,429,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,100,778.59 : 98,127,053.91 = 40,162,940.37 : x
  2. Step 2: Convert to fraction form
    71,100,778.59/98,127,053.91 = 40,162,940.37/x
  3. Step 3: Cross multiply
    71,100,778.59x = 98,127,053.91 × 40,162,940.37
  4. Step 4: Simplify right side
    71,100,778.59x = 3,941,071,014,871,105
  5. Step 5: Solve for x
    x = 3,941,071,014,871,105/71,100,778.59
  6. Step 6: Final answer
    x = 55,429,365.09

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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.