Home / 31,415,940.60-47,086,586.10-13,220,100.60

Finding the Fourth Proportional to 31,415,940.60, 47,086,586.10 and 13,220,100.60

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Solution

The fourth proportional to 31,415,940.60, 47,086,586.10 and 13,220,100.60 is: 19,814,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415,940.60 : 47,086,586.10 = 13,220,100.60 : x
  2. Step 2: Convert to fraction form
    31,415,940.60/47,086,586.10 = 13,220,100.60/x
  3. Step 3: Cross multiply
    31,415,940.60x = 47,086,586.10 × 13,220,100.60
  4. Step 4: Simplify right side
    31,415,940.60x = 622,489,405,152,561.62
  5. Step 5: Solve for x
    x = 622,489,405,152,561.62/31,415,940.60
  6. Step 6: Final answer
    x = 19,814,444.30

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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.