Home / 981,361,223.10-1,470,791,453.85-521,519,687.10

Finding the Fourth Proportional to 981,361,223.10, 1,470,791,453.85 and 521,519,687.10

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Solution

The fourth proportional to 981,361,223.10, 1,470,791,453.85 and 521,519,687.10 is: 781,615,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,361,223.10 : 1,470,791,453.85 = 521,519,687.10 : x
  2. Step 2: Convert to fraction form
    981,361,223.10/1,470,791,453.85 = 521,519,687.10/x
  3. Step 3: Cross multiply
    981,361,223.10x = 1,470,791,453.85 × 521,519,687.10
  4. Step 4: Simplify right side
    981,361,223.10x = 767,046,698,801,206,016
  5. Step 5: Solve for x
    x = 767,046,698,801,206,016/981,361,223.10
  6. Step 6: Final answer
    x = 781,615,047.29

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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.