Home / 31,498,281-43,486,523.46-20,652,160.68

Finding the Fourth Proportional to 31,498,281, 43,486,523.46 and 20,652,160.68

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Solution

The fourth proportional to 31,498,281, 43,486,523.46 and 20,652,160.68 is: 28,512,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,498,281 : 43,486,523.46 = 20,652,160.68 : x
  2. Step 2: Convert to fraction form
    31,498,281/43,486,523.46 = 20,652,160.68/x
  3. Step 3: Cross multiply
    31,498,281x = 43,486,523.46 × 20,652,160.68
  4. Step 4: Simplify right side
    31,498,281x = 898,090,669,910,509.50
  5. Step 5: Solve for x
    x = 898,090,669,910,509.50/31,498,281
  6. Step 6: Final answer
    x = 28,512,370.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.