Home / 120,670,876.10-166,512,243.21-71,108,032.34

Finding the Fourth Proportional to 120,670,876.10, 166,512,243.21 and 71,108,032.34

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Solution

The fourth proportional to 120,670,876.10, 166,512,243.21 and 71,108,032.34 is: 98,121,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670,876.10 : 166,512,243.21 = 71,108,032.34 : x
  2. Step 2: Convert to fraction form
    120,670,876.10/166,512,243.21 = 71,108,032.34/x
  3. Step 3: Cross multiply
    120,670,876.10x = 166,512,243.21 × 71,108,032.34
  4. Step 4: Simplify right side
    120,670,876.10x = 11,840,357,975,331,540
  5. Step 5: Solve for x
    x = 11,840,357,975,331,540/120,670,876.10
  6. Step 6: Final answer
    x = 98,121,090.67

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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.