Home / 81,197,076.33-121,818,089.61-37,491,208.11

Finding the Fourth Proportional to 81,197,076.33, 121,818,089.61 and 37,491,208.11

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Solution

The fourth proportional to 81,197,076.33, 121,818,089.61 and 37,491,208.11 is: 56,247,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,197,076.33 : 121,818,089.61 = 37,491,208.11 : x
  2. Step 2: Convert to fraction form
    81,197,076.33/121,818,089.61 = 37,491,208.11/x
  3. Step 3: Cross multiply
    81,197,076.33x = 121,818,089.61 × 37,491,208.11
  4. Step 4: Simplify right side
    81,197,076.33x = 4,567,107,349,131,139
  5. Step 5: Solve for x
    x = 4,567,107,349,131,139/81,197,076.33
  6. Step 6: Final answer
    x = 56,247,189.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.