Home / 78,067,391.75-107,733,642.46-43,260,663.45

Finding the Fourth Proportional to 78,067,391.75, 107,733,642.46 and 43,260,663.45

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Solution

The fourth proportional to 78,067,391.75, 107,733,642.46 and 43,260,663.45 is: 59,700,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,391.75 : 107,733,642.46 = 43,260,663.45 : x
  2. Step 2: Convert to fraction form
    78,067,391.75/107,733,642.46 = 43,260,663.45/x
  3. Step 3: Cross multiply
    78,067,391.75x = 107,733,642.46 × 43,260,663.45
  4. Step 4: Simplify right side
    78,067,391.75x = 4,660,628,848,596,539
  5. Step 5: Solve for x
    x = 4,660,628,848,596,539/78,067,391.75
  6. Step 6: Final answer
    x = 59,700,071.24

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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.