Home / 20,809,046.80-31,216,560.54-6,433,235.56

Finding the Fourth Proportional to 20,809,046.80, 31,216,560.54 and 6,433,235.56

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Solution

The fourth proportional to 20,809,046.80, 31,216,560.54 and 6,433,235.56 is: 9,650,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,046.80 : 31,216,560.54 = 6,433,235.56 : x
  2. Step 2: Convert to fraction form
    20,809,046.80/31,216,560.54 = 6,433,235.56/x
  3. Step 3: Cross multiply
    20,809,046.80x = 31,216,560.54 × 6,433,235.56
  4. Step 4: Simplify right side
    20,809,046.80x = 200,823,487,326,820.78
  5. Step 5: Solve for x
    x = 200,823,487,326,820.78/20,809,046.80
  6. Step 6: Final answer
    x = 9,650,777.82

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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.