Home / 57,220,331.27-78,965,553.69-31,116,375.81

Finding the Fourth Proportional to 57,220,331.27, 78,965,553.69 and 31,116,375.81

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Solution

The fourth proportional to 57,220,331.27, 78,965,553.69 and 31,116,375.81 is: 42,941,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220,331.27 : 78,965,553.69 = 31,116,375.81 : x
  2. Step 2: Convert to fraction form
    57,220,331.27/78,965,553.69 = 31,116,375.81/x
  3. Step 3: Cross multiply
    57,220,331.27x = 78,965,553.69 × 31,116,375.81
  4. Step 4: Simplify right side
    57,220,331.27x = 2,457,121,844,662,772
  5. Step 5: Solve for x
    x = 2,457,121,844,662,772/57,220,331.27
  6. Step 6: Final answer
    x = 42,941,412.44

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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.