Home / 136,937,725.20-188,993,439.54-84,743,575.38

Finding the Fourth Proportional to 136,937,725.20, 188,993,439.54 and 84,743,575.38

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Solution

The fourth proportional to 136,937,725.20, 188,993,439.54 and 84,743,575.38 is: 116,958,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,937,725.20 : 188,993,439.54 = 84,743,575.38 : x
  2. Step 2: Convert to fraction form
    136,937,725.20/188,993,439.54 = 84,743,575.38/x
  3. Step 3: Cross multiply
    136,937,725.20x = 188,993,439.54 × 84,743,575.38
  4. Step 4: Simplify right side
    136,937,725.20x = 16,015,979,789,983,460
  5. Step 5: Solve for x
    x = 16,015,979,789,983,460/136,937,725.20
  6. Step 6: Final answer
    x = 116,958,126.52

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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.