Home / 20,864,404.23-31,274,517.52-7,018,181.68

Finding the Fourth Proportional to 20,864,404.23, 31,274,517.52 and 7,018,181.68

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Solution

The fourth proportional to 20,864,404.23, 31,274,517.52 and 7,018,181.68 is: 10,519,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,404.23 : 31,274,517.52 = 7,018,181.68 : x
  2. Step 2: Convert to fraction form
    20,864,404.23/31,274,517.52 = 7,018,181.68/x
  3. Step 3: Cross multiply
    20,864,404.23x = 31,274,517.52 × 7,018,181.68
  4. Step 4: Simplify right side
    20,864,404.23x = 219,490,245,813,971.28
  5. Step 5: Solve for x
    x = 219,490,245,813,971.28/20,864,404.23
  6. Step 6: Final answer
    x = 10,519,842.47

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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.