Home / 20,210,062.60-30,315,093.90-7,428,906.55

Finding the Fourth Proportional to 20,210,062.60, 30,315,093.90 and 7,428,906.55

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Solution

The fourth proportional to 20,210,062.60, 30,315,093.90 and 7,428,906.55 is: 11,143,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,062.60 : 30,315,093.90 = 7,428,906.55 : x
  2. Step 2: Convert to fraction form
    20,210,062.60/30,315,093.90 = 7,428,906.55/x
  3. Step 3: Cross multiply
    20,210,062.60x = 30,315,093.90 × 7,428,906.55
  4. Step 4: Simplify right side
    20,210,062.60x = 225,207,999,637,575.03
  5. Step 5: Solve for x
    x = 225,207,999,637,575.03/20,210,062.60
  6. Step 6: Final answer
    x = 11,143,359.83

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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.