Home / 81,338,797.20-112,206,035.25-51,939,218.64

Finding the Fourth Proportional to 81,338,797.20, 112,206,035.25 and 51,939,218.64

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Solution

The fourth proportional to 81,338,797.20, 112,206,035.25 and 51,939,218.64 is: 71,649,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338,797.20 : 112,206,035.25 = 51,939,218.64 : x
  2. Step 2: Convert to fraction form
    81,338,797.20/112,206,035.25 = 51,939,218.64/x
  3. Step 3: Cross multiply
    81,338,797.20x = 112,206,035.25 × 51,939,218.64
  4. Step 4: Simplify right side
    81,338,797.20x = 5,827,893,797,577,297
  5. Step 5: Solve for x
    x = 5,827,893,797,577,297/81,338,797.20
  6. Step 6: Final answer
    x = 71,649,618.61

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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.