Home / 81,197,076.83-121,818,090.36-37,491,208.61

Finding the Fourth Proportional to 81,197,076.83, 121,818,090.36 and 37,491,208.61

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Solution

The fourth proportional to 81,197,076.83, 121,818,090.36 and 37,491,208.61 is: 56,247,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,197,076.83 : 121,818,090.36 = 37,491,208.61 : x
  2. Step 2: Convert to fraction form
    81,197,076.83/121,818,090.36 = 37,491,208.61/x
  3. Step 3: Cross multiply
    81,197,076.83x = 121,818,090.36 × 37,491,208.61
  4. Step 4: Simplify right side
    81,197,076.83x = 4,567,107,438,158,590
  5. Step 5: Solve for x
    x = 4,567,107,438,158,590/81,197,076.83
  6. Step 6: Final answer
    x = 56,247,190.37

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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.