Home / 20,719,655.66-31,074,181.97-6,143,166.61

Finding the Fourth Proportional to 20,719,655.66, 31,074,181.97 and 6,143,166.61

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Solution

The fourth proportional to 20,719,655.66, 31,074,181.97 and 6,143,166.61 is: 9,213,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719,655.66 : 31,074,181.97 = 6,143,166.61 : x
  2. Step 2: Convert to fraction form
    20,719,655.66/31,074,181.97 = 6,143,166.61/x
  3. Step 3: Cross multiply
    20,719,655.66x = 31,074,181.97 × 6,143,166.61
  4. Step 4: Simplify right side
    20,719,655.66x = 190,893,877,002,766.72
  5. Step 5: Solve for x
    x = 190,893,877,002,766.72/20,719,655.66
  6. Step 6: Final answer
    x = 9,213,178.06

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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.