Home / 209,953,741.80-314,930,612.70-123,647,723.40

Finding the Fourth Proportional to 209,953,741.80, 314,930,612.70 and 123,647,723.40

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Solution

The fourth proportional to 209,953,741.80, 314,930,612.70 and 123,647,723.40 is: 185,471,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,741.80 : 314,930,612.70 = 123,647,723.40 : x
  2. Step 2: Convert to fraction form
    209,953,741.80/314,930,612.70 = 123,647,723.40/x
  3. Step 3: Cross multiply
    209,953,741.80x = 314,930,612.70 × 123,647,723.40
  4. Step 4: Simplify right side
    209,953,741.80x = 38,940,453,289,322,128
  5. Step 5: Solve for x
    x = 38,940,453,289,322,128/209,953,741.80
  6. Step 6: Final answer
    x = 185,471,585.10

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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.