Home / 20,794,664.10-31,194,080.55-7,146,012.90

Finding the Fourth Proportional to 20,794,664.10, 31,194,080.55 and 7,146,012.90

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Solution

The fourth proportional to 20,794,664.10, 31,194,080.55 and 7,146,012.90 is: 10,719,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794,664.10 : 31,194,080.55 = 7,146,012.90 : x
  2. Step 2: Convert to fraction form
    20,794,664.10/31,194,080.55 = 7,146,012.90/x
  3. Step 3: Cross multiply
    20,794,664.10x = 31,194,080.55 × 7,146,012.90
  4. Step 4: Simplify right side
    20,794,664.10x = 222,913,302,013,939.12
  5. Step 5: Solve for x
    x = 222,913,302,013,939.12/20,794,664.10
  6. Step 6: Final answer
    x = 10,719,735.65

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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.