Home / 21,193,131.37-31,747,132.90-9,662,737.71

Finding the Fourth Proportional to 21,193,131.37, 31,747,132.90 and 9,662,737.71

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Solution

The fourth proportional to 21,193,131.37, 31,747,132.90 and 9,662,737.71 is: 14,474,699.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,131.37 : 31,747,132.90 = 9,662,737.71 : x
  2. Step 2: Convert to fraction form
    21,193,131.37/31,747,132.90 = 9,662,737.71/x
  3. Step 3: Cross multiply
    21,193,131.37x = 31,747,132.90 × 9,662,737.71
  4. Step 4: Simplify right side
    21,193,131.37x = 306,764,218,177,843.81
  5. Step 5: Solve for x
    x = 306,764,218,177,843.81/21,193,131.37
  6. Step 6: Final answer
    x = 14,474,699.98

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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.