Home / 31,347,190.70-47,020,786.05-27,999,112.40

Finding the Fourth Proportional to 31,347,190.70, 47,020,786.05 and 27,999,112.40

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Solution

The fourth proportional to 31,347,190.70, 47,020,786.05 and 27,999,112.40 is: 41,998,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347,190.70 : 47,020,786.05 = 27,999,112.40 : x
  2. Step 2: Convert to fraction form
    31,347,190.70/47,020,786.05 = 27,999,112.40/x
  3. Step 3: Cross multiply
    31,347,190.70x = 47,020,786.05 × 27,999,112.40
  4. Step 4: Simplify right side
    31,347,190.70x = 1,316,540,273,750,301.75
  5. Step 5: Solve for x
    x = 1,316,540,273,750,301.75/31,347,190.70
  6. Step 6: Final answer
    x = 41,998,668.60

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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.