Home / 78,067,391.88-107,733,642.64-43,260,663.58

Finding the Fourth Proportional to 78,067,391.88, 107,733,642.64 and 43,260,663.58

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Solution

The fourth proportional to 78,067,391.88, 107,733,642.64 and 43,260,663.58 is: 59,700,071.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,391.88 : 107,733,642.64 = 43,260,663.58 : x
  2. Step 2: Convert to fraction form
    78,067,391.88/107,733,642.64 = 43,260,663.58/x
  3. Step 3: Cross multiply
    78,067,391.88x = 107,733,642.64 × 43,260,663.58
  4. Step 4: Simplify right side
    78,067,391.88x = 4,660,628,870,496,983
  5. Step 5: Solve for x
    x = 4,660,628,870,496,983/78,067,391.88
  6. Step 6: Final answer
    x = 59,700,071.42

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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.