Home / 31,415,961.60-47,086,617.60-13,220,121.60

Finding the Fourth Proportional to 31,415,961.60, 47,086,617.60 and 13,220,121.60

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Solution

The fourth proportional to 31,415,961.60, 47,086,617.60 and 13,220,121.60 is: 19,814,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415,961.60 : 47,086,617.60 = 13,220,121.60 : x
  2. Step 2: Convert to fraction form
    31,415,961.60/47,086,617.60 = 13,220,121.60/x
  3. Step 3: Cross multiply
    31,415,961.60x = 47,086,617.60 × 13,220,121.60
  4. Step 4: Simplify right side
    31,415,961.60x = 622,490,810,404,700.12
  5. Step 5: Solve for x
    x = 622,490,810,404,700.12/31,415,961.60
  6. Step 6: Final answer
    x = 19,814,475.79

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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.