Home / 77,691,068.74-107,213,685.51-42,883,766.56

Finding the Fourth Proportional to 77,691,068.74, 107,213,685.51 and 42,883,766.56

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Solution

The fourth proportional to 77,691,068.74, 107,213,685.51 and 42,883,766.56 is: 59,179,603.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691,068.74 : 107,213,685.51 = 42,883,766.56 : x
  2. Step 2: Convert to fraction form
    77,691,068.74/107,213,685.51 = 42,883,766.56/x
  3. Step 3: Cross multiply
    77,691,068.74x = 107,213,685.51 × 42,883,766.56
  4. Step 4: Simplify right side
    77,691,068.74x = 4,597,726,661,448,095
  5. Step 5: Solve for x
    x = 4,597,726,661,448,095/77,691,068.74
  6. Step 6: Final answer
    x = 59,179,603.73

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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.