Home / 31,686,755.05-47,448,274.89-21,869,112.65

Finding the Fourth Proportional to 31,686,755.05, 47,448,274.89 and 21,869,112.65

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Solution

The fourth proportional to 31,686,755.05, 47,448,274.89 and 21,869,112.65 is: 32,747,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686,755.05 : 47,448,274.89 = 21,869,112.65 : x
  2. Step 2: Convert to fraction form
    31,686,755.05/47,448,274.89 = 21,869,112.65/x
  3. Step 3: Cross multiply
    31,686,755.05x = 47,448,274.89 × 21,869,112.65
  4. Step 4: Simplify right side
    31,686,755.05x = 1,037,651,668,617,576.25
  5. Step 5: Solve for x
    x = 1,037,651,668,617,576.25/31,686,755.05
  6. Step 6: Final answer
    x = 32,747,173.61

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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.