Home / 139,969,314.30-209,953,971.45-123,530,072.70

Finding the Fourth Proportional to 139,969,314.30, 209,953,971.45 and 123,530,072.70

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Solution

The fourth proportional to 139,969,314.30, 209,953,971.45 and 123,530,072.70 is: 185,295,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,314.30 : 209,953,971.45 = 123,530,072.70 : x
  2. Step 2: Convert to fraction form
    139,969,314.30/209,953,971.45 = 123,530,072.70/x
  3. Step 3: Cross multiply
    139,969,314.30x = 209,953,971.45 × 123,530,072.70
  4. Step 4: Simplify right side
    139,969,314.30x = 25,935,629,356,872,224
  5. Step 5: Solve for x
    x = 25,935,629,356,872,224/139,969,314.30
  6. Step 6: Final answer
    x = 185,295,109.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.