Home / 78,067,390.37-107,733,640.56-43,260,662.08

Finding the Fourth Proportional to 78,067,390.37, 107,733,640.56 and 43,260,662.08

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Solution

The fourth proportional to 78,067,390.37, 107,733,640.56 and 43,260,662.08 is: 59,700,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,390.37 : 107,733,640.56 = 43,260,662.08 : x
  2. Step 2: Convert to fraction form
    78,067,390.37/107,733,640.56 = 43,260,662.08/x
  3. Step 3: Cross multiply
    78,067,390.37x = 107,733,640.56 × 43,260,662.08
  4. Step 4: Simplify right side
    78,067,390.37x = 4,660,628,618,375,674
  5. Step 5: Solve for x
    x = 4,660,628,618,375,674/78,067,390.37
  6. Step 6: Final answer
    x = 59,700,069.34

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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.