Home / 77,278,648.76-106,647,092.84-42,472,572.92

Finding the Fourth Proportional to 77,278,648.76, 106,647,092.84 and 42,472,572.92

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Solution

The fourth proportional to 77,278,648.76, 106,647,092.84 and 42,472,572.92 is: 58,613,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,648.76 : 106,647,092.84 = 42,472,572.92 : x
  2. Step 2: Convert to fraction form
    77,278,648.76/106,647,092.84 = 42,472,572.92/x
  3. Step 3: Cross multiply
    77,278,648.76x = 106,647,092.84 × 42,472,572.92
  4. Step 4: Simplify right side
    77,278,648.76x = 4,529,576,427,352,910
  5. Step 5: Solve for x
    x = 4,529,576,427,352,910/77,278,648.76
  6. Step 6: Final answer
    x = 58,613,556.27

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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.