Home / 31,936,598.68-47,940,707.94-12,780,707.80

Finding the Fourth Proportional to 31,936,598.68, 47,940,707.94 and 12,780,707.80

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Solution

The fourth proportional to 31,936,598.68, 47,940,707.94 and 12,780,707.80 is: 19,185,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936,598.68 : 47,940,707.94 = 12,780,707.80 : x
  2. Step 2: Convert to fraction form
    31,936,598.68/47,940,707.94 = 12,780,707.80/x
  3. Step 3: Cross multiply
    31,936,598.68x = 47,940,707.94 × 12,780,707.80
  4. Step 4: Simplify right side
    31,936,598.68x = 612,716,179,906,279.88
  5. Step 5: Solve for x
    x = 612,716,179,906,279.88/31,936,598.68
  6. Step 6: Final answer
    x = 19,185,392.47

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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.