Home / 31,940,661.38-47,891,802.17-12,486,717.16

Finding the Fourth Proportional to 31,940,661.38, 47,891,802.17 and 12,486,717.16

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Solution

The fourth proportional to 31,940,661.38, 47,891,802.17 and 12,486,717.16 is: 18,722,573.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940,661.38 : 47,891,802.17 = 12,486,717.16 : x
  2. Step 2: Convert to fraction form
    31,940,661.38/47,891,802.17 = 12,486,717.16/x
  3. Step 3: Cross multiply
    31,940,661.38x = 47,891,802.17 × 12,486,717.16
  4. Step 4: Simplify right side
    31,940,661.38x = 598,011,388,157,441
  5. Step 5: Solve for x
    x = 598,011,388,157,441/31,940,661.38
  6. Step 6: Final answer
    x = 18,722,573.75

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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.