Home / 31,766,198.76-47,648,286.54-18,900,495.72

Finding the Fourth Proportional to 31,766,198.76, 47,648,286.54 and 18,900,495.72

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Solution

The fourth proportional to 31,766,198.76, 47,648,286.54 and 18,900,495.72 is: 28,350,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,766,198.76 : 47,648,286.54 = 18,900,495.72 : x
  2. Step 2: Convert to fraction form
    31,766,198.76/47,648,286.54 = 18,900,495.72/x
  3. Step 3: Cross multiply
    31,766,198.76x = 47,648,286.54 × 18,900,495.72
  4. Step 4: Simplify right side
    31,766,198.76x = 900,576,235,814,603.50
  5. Step 5: Solve for x
    x = 900,576,235,814,603.50/31,766,198.76
  6. Step 6: Final answer
    x = 28,350,141.69

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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.