Home / 31,751,710.40-47,640,007.20-12,579,204.80

Finding the Fourth Proportional to 31,751,710.40, 47,640,007.20 and 12,579,204.80

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Solution

The fourth proportional to 31,751,710.40, 47,640,007.20 and 12,579,204.80 is: 18,873,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751,710.40 : 47,640,007.20 = 12,579,204.80 : x
  2. Step 2: Convert to fraction form
    31,751,710.40/47,640,007.20 = 12,579,204.80/x
  3. Step 3: Cross multiply
    31,751,710.40x = 47,640,007.20 × 12,579,204.80
  4. Step 4: Simplify right side
    31,751,710.40x = 599,273,407,242,274.62
  5. Step 5: Solve for x
    x = 599,273,407,242,274.62/31,751,710.40
  6. Step 6: Final answer
    x = 18,873,736.24

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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.