Home / 31,653,544.89-47,455,513.26-12,498,639.78

Finding the Fourth Proportional to 31,653,544.89, 47,455,513.26 and 12,498,639.78

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Solution

The fourth proportional to 31,653,544.89, 47,455,513.26 and 12,498,639.78 is: 18,738,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653,544.89 : 47,455,513.26 = 12,498,639.78 : x
  2. Step 2: Convert to fraction form
    31,653,544.89/47,455,513.26 = 12,498,639.78/x
  3. Step 3: Cross multiply
    31,653,544.89x = 47,455,513.26 × 12,498,639.78
  4. Step 4: Simplify right side
    31,653,544.89x = 593,129,365,811,753.38
  5. Step 5: Solve for x
    x = 593,129,365,811,753.38/31,653,544.89
  6. Step 6: Final answer
    x = 18,738,165.59

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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.