Home / 31,557,890.72-47,338,186.80-12,392,794.64

Finding the Fourth Proportional to 31,557,890.72, 47,338,186.80 and 12,392,794.64

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Solution

The fourth proportional to 31,557,890.72, 47,338,186.80 and 12,392,794.64 is: 18,589,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,557,890.72 : 47,338,186.80 = 12,392,794.64 : x
  2. Step 2: Convert to fraction form
    31,557,890.72/47,338,186.80 = 12,392,794.64/x
  3. Step 3: Cross multiply
    31,557,890.72x = 47,338,186.80 × 12,392,794.64
  4. Step 4: Simplify right side
    31,557,890.72x = 586,652,427,642,358.75
  5. Step 5: Solve for x
    x = 586,652,427,642,358.75/31,557,890.72
  6. Step 6: Final answer
    x = 18,589,722.39

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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.