Home / 166,399,796.78-229,635,984.15-100,324,531.67

Finding the Fourth Proportional to 166,399,796.78, 229,635,984.15 and 100,324,531.67

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Solution

The fourth proportional to 166,399,796.78, 229,635,984.15 and 100,324,531.67 is: 138,450,424.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,399,796.78 : 229,635,984.15 = 100,324,531.67 : x
  2. Step 2: Convert to fraction form
    166,399,796.78/229,635,984.15 = 100,324,531.67/x
  3. Step 3: Cross multiply
    166,399,796.78x = 229,635,984.15 × 100,324,531.67
  4. Step 4: Simplify right side
    166,399,796.78x = 23,038,122,563,280,116
  5. Step 5: Solve for x
    x = 23,038,122,563,280,116/166,399,796.78
  6. Step 6: Final answer
    x = 138,450,424.88

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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.