Home / 137,339,458.08-189,481,577.46-85,109,436.60

Finding the Fourth Proportional to 137,339,458.08, 189,481,577.46 and 85,109,436.60

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Solution

The fourth proportional to 137,339,458.08, 189,481,577.46 and 85,109,436.60 is: 117,421,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,339,458.08 : 189,481,577.46 = 85,109,436.60 : x
  2. Step 2: Convert to fraction form
    137,339,458.08/189,481,577.46 = 85,109,436.60/x
  3. Step 3: Cross multiply
    137,339,458.08x = 189,481,577.46 × 85,109,436.60
  4. Step 4: Simplify right side
    137,339,458.08x = 16,126,670,303,699,858
  5. Step 5: Solve for x
    x = 16,126,670,303,699,858/137,339,458.08
  6. Step 6: Final answer
    x = 117,421,974.20

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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.