Home / 31,830,761.91-47,741,345.90-20,396,135.01

Finding the Fourth Proportional to 31,830,761.91, 47,741,345.90 and 20,396,135.01

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Solution

The fourth proportional to 31,830,761.91, 47,741,345.90 and 20,396,135.01 is: 30,591,128.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830,761.91 : 47,741,345.90 = 20,396,135.01 : x
  2. Step 2: Convert to fraction form
    31,830,761.91/47,741,345.90 = 20,396,135.01/x
  3. Step 3: Cross multiply
    31,830,761.91x = 47,741,345.90 × 20,396,135.01
  4. Step 4: Simplify right side
    31,830,761.91x = 973,738,936,433,529.38
  5. Step 5: Solve for x
    x = 973,738,936,433,529.38/31,830,761.91
  6. Step 6: Final answer
    x = 30,591,128.77

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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.