Home / 140,248,147.37-193,538,730.17-78,368,994.41

Finding the Fourth Proportional to 140,248,147.37, 193,538,730.17 and 78,368,994.41

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Solution

The fourth proportional to 140,248,147.37, 193,538,730.17 and 78,368,994.41 is: 108,147,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,248,147.37 : 193,538,730.17 = 78,368,994.41 : x
  2. Step 2: Convert to fraction form
    140,248,147.37/193,538,730.17 = 78,368,994.41/x
  3. Step 3: Cross multiply
    140,248,147.37x = 193,538,730.17 × 78,368,994.41
  4. Step 4: Simplify right side
    140,248,147.37x = 15,167,435,662,039,458
  5. Step 5: Solve for x
    x = 15,167,435,662,039,458/140,248,147.37
  6. Step 6: Final answer
    x = 108,147,137.39

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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.