Home / 81,154,538.78-121,444,453.11-50,463,570.74

Finding the Fourth Proportional to 81,154,538.78, 121,444,453.11 and 50,463,570.74

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Solution

The fourth proportional to 81,154,538.78, 121,444,453.11 and 50,463,570.74 is: 75,516,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,154,538.78 : 121,444,453.11 = 50,463,570.74 : x
  2. Step 2: Convert to fraction form
    81,154,538.78/121,444,453.11 = 50,463,570.74/x
  3. Step 3: Cross multiply
    81,154,538.78x = 121,444,453.11 × 50,463,570.74
  4. Step 4: Simplify right side
    81,154,538.78x = 6,128,520,750,497,098
  5. Step 5: Solve for x
    x = 6,128,520,750,497,098/81,154,538.78
  6. Step 6: Final answer
    x = 75,516,672.79

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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.