Home / 808,338,147.12-1,115,500,145.51-469,278,083.81

Finding the Fourth Proportional to 808,338,147.12, 1,115,500,145.51 and 469,278,083.81

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Solution

The fourth proportional to 808,338,147.12, 1,115,500,145.51 and 469,278,083.81 is: 647,599,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,338,147.12 : 1,115,500,145.51 = 469,278,083.81 : x
  2. Step 2: Convert to fraction form
    808,338,147.12/1,115,500,145.51 = 469,278,083.81/x
  3. Step 3: Cross multiply
    808,338,147.12x = 1,115,500,145.51 × 469,278,083.81
  4. Step 4: Simplify right side
    808,338,147.12x = 523,479,770,766,785,152
  5. Step 5: Solve for x
    x = 523,479,770,766,785,152/808,338,147.12
  6. Step 6: Final answer
    x = 647,599,983.54

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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.