Home / 31,504,019.40-47,256,029.10-18,717,942.60

Finding the Fourth Proportional to 31,504,019.40, 47,256,029.10 and 18,717,942.60

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Solution

The fourth proportional to 31,504,019.40, 47,256,029.10 and 18,717,942.60 is: 28,076,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504,019.40 : 47,256,029.10 = 18,717,942.60 : x
  2. Step 2: Convert to fraction form
    31,504,019.40/47,256,029.10 = 18,717,942.60/x
  3. Step 3: Cross multiply
    31,504,019.40x = 47,256,029.10 × 18,717,942.60
  4. Step 4: Simplify right side
    31,504,019.40x = 884,535,640,197,729.75
  5. Step 5: Solve for x
    x = 884,535,640,197,729.75/31,504,019.40
  6. Step 6: Final answer
    x = 28,076,913.90

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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.