Home / 77,691,067.74-107,213,684.13-42,883,765.56

Finding the Fourth Proportional to 77,691,067.74, 107,213,684.13 and 42,883,765.56

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Solution

The fourth proportional to 77,691,067.74, 107,213,684.13 and 42,883,765.56 is: 59,179,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691,067.74 : 107,213,684.13 = 42,883,765.56 : x
  2. Step 2: Convert to fraction form
    77,691,067.74/107,213,684.13 = 42,883,765.56/x
  3. Step 3: Cross multiply
    77,691,067.74x = 107,213,684.13 × 42,883,765.56
  4. Step 4: Simplify right side
    77,691,067.74x = 4,597,726,495,054,813
  5. Step 5: Solve for x
    x = 4,597,726,495,054,813/77,691,067.74
  6. Step 6: Final answer
    x = 59,179,602.35

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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.