Home / 81,079,729.08-111,888,643.32-43,909,708.12

Finding the Fourth Proportional to 81,079,729.08, 111,888,643.32 and 43,909,708.12

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Solution

The fourth proportional to 81,079,729.08, 111,888,643.32 and 43,909,708.12 is: 60,594,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079,729.08 : 111,888,643.32 = 43,909,708.12 : x
  2. Step 2: Convert to fraction form
    81,079,729.08/111,888,643.32 = 43,909,708.12/x
  3. Step 3: Cross multiply
    81,079,729.08x = 111,888,643.32 × 43,909,708.12
  4. Step 4: Simplify right side
    81,079,729.08x = 4,912,997,670,123,987
  5. Step 5: Solve for x
    x = 4,912,997,670,123,987/81,079,729.08
  6. Step 6: Final answer
    x = 60,594,648.33

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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.