Home / 40,090,475.18-55,324,856.18-21,755,760.68

Finding the Fourth Proportional to 40,090,475.18, 55,324,856.18 and 21,755,760.68

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Solution

The fourth proportional to 40,090,475.18, 55,324,856.18 and 21,755,760.68 is: 30,022,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,090,475.18 : 55,324,856.18 = 21,755,760.68 : x
  2. Step 2: Convert to fraction form
    40,090,475.18/55,324,856.18 = 21,755,760.68/x
  3. Step 3: Cross multiply
    40,090,475.18x = 55,324,856.18 × 21,755,760.68
  4. Step 4: Simplify right side
    40,090,475.18x = 1,203,634,330,900,200.50
  5. Step 5: Solve for x
    x = 1,203,634,330,900,200.50/40,090,475.18
  6. Step 6: Final answer
    x = 30,022,949.98

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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.