Home / 47,941,879.70-71,904,946.34-20,640,822.40

Finding the Fourth Proportional to 47,941,879.70, 71,904,946.34 and 20,640,822.40

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Solution

The fourth proportional to 47,941,879.70, 71,904,946.34 and 20,640,822.40 is: 30,957,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,941,879.70 : 71,904,946.34 = 20,640,822.40 : x
  2. Step 2: Convert to fraction form
    47,941,879.70/71,904,946.34 = 20,640,822.40/x
  3. Step 3: Cross multiply
    47,941,879.70x = 71,904,946.34 × 20,640,822.40
  4. Step 4: Simplify right side
    47,941,879.70x = 1,484,177,227,085,470
  5. Step 5: Solve for x
    x = 1,484,177,227,085,470/47,941,879.70
  6. Step 6: Final answer
    x = 30,957,843.88

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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.