Home / 31,830,782.76-47,741,377.15-20,396,155.86

Finding the Fourth Proportional to 31,830,782.76, 47,741,377.15 and 20,396,155.86

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Solution

The fourth proportional to 31,830,782.76, 47,741,377.15 and 20,396,155.86 is: 30,591,160.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830,782.76 : 47,741,377.15 = 20,396,155.86 : x
  2. Step 2: Convert to fraction form
    31,830,782.76/47,741,377.15 = 20,396,155.86/x
  3. Step 3: Cross multiply
    31,830,782.76x = 47,741,377.15 × 20,396,155.86
  4. Step 4: Simplify right side
    31,830,782.76x = 973,740,569,322,442.50
  5. Step 5: Solve for x
    x = 973,740,569,322,442.50/31,830,782.76
  6. Step 6: Final answer
    x = 30,591,160.03

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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.