Home / 21,038,134.78-31,576,601.13-10,670,631.58

Finding the Fourth Proportional to 21,038,134.78, 31,576,601.13 and 10,670,631.58

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Solution

The fourth proportional to 21,038,134.78, 31,576,601.13 and 10,670,631.58 is: 16,015,786.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,134.78 : 31,576,601.13 = 10,670,631.58 : x
  2. Step 2: Convert to fraction form
    21,038,134.78/31,576,601.13 = 10,670,631.58/x
  3. Step 3: Cross multiply
    21,038,134.78x = 31,576,601.13 × 10,670,631.58
  4. Step 4: Simplify right side
    21,038,134.78x = 336,942,277,206,841.69
  5. Step 5: Solve for x
    x = 336,942,277,206,841.69/21,038,134.78
  6. Step 6: Final answer
    x = 16,015,786.61

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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.