Home / 78,067,391.37-107,733,641.94-43,260,663.08

Finding the Fourth Proportional to 78,067,391.37, 107,733,641.94 and 43,260,663.08

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Solution

The fourth proportional to 78,067,391.37, 107,733,641.94 and 43,260,663.08 is: 59,700,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,391.37 : 107,733,641.94 = 43,260,663.08 : x
  2. Step 2: Convert to fraction form
    78,067,391.37/107,733,641.94 = 43,260,663.08/x
  3. Step 3: Cross multiply
    78,067,391.37x = 107,733,641.94 × 43,260,663.08
  4. Step 4: Simplify right side
    78,067,391.37x = 4,660,628,785,809,030
  5. Step 5: Solve for x
    x = 4,660,628,785,809,030/78,067,391.37
  6. Step 6: Final answer
    x = 59,700,070.72

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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.