Home / 31,780,143.73-47,670,658.47-9,061,040.98

Finding the Fourth Proportional to 31,780,143.73, 47,670,658.47 and 9,061,040.98

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Solution

The fourth proportional to 31,780,143.73, 47,670,658.47 and 9,061,040.98 is: 13,591,687.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780,143.73 : 47,670,658.47 = 9,061,040.98 : x
  2. Step 2: Convert to fraction form
    31,780,143.73/47,670,658.47 = 9,061,040.98/x
  3. Step 3: Cross multiply
    31,780,143.73x = 47,670,658.47 × 9,061,040.98
  4. Step 4: Simplify right side
    31,780,143.73x = 431,945,789,940,254.12
  5. Step 5: Solve for x
    x = 431,945,789,940,254.12/31,780,143.73
  6. Step 6: Final answer
    x = 13,591,687.74

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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.