Home / 80,743,930.79-111,425,202.79-45,935,879.36

Finding the Fourth Proportional to 80,743,930.79, 111,425,202.79 and 45,935,879.36

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Solution

The fourth proportional to 80,743,930.79, 111,425,202.79 and 45,935,879.36 is: 63,390,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,743,930.79 : 111,425,202.79 = 45,935,879.36 : x
  2. Step 2: Convert to fraction form
    80,743,930.79/111,425,202.79 = 45,935,879.36/x
  3. Step 3: Cross multiply
    80,743,930.79x = 111,425,202.79 × 45,935,879.36
  4. Step 4: Simplify right side
    80,743,930.79x = 5,118,414,672,353,009
  5. Step 5: Solve for x
    x = 5,118,414,672,353,009/80,743,930.79
  6. Step 6: Final answer
    x = 63,390,704.70

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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.