Home / 20,229,881.80-30,344,822.70-7,447,741.60

Finding the Fourth Proportional to 20,229,881.80, 30,344,822.70 and 7,447,741.60

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Solution

The fourth proportional to 20,229,881.80, 30,344,822.70 and 7,447,741.60 is: 11,171,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,881.80 : 30,344,822.70 = 7,447,741.60 : x
  2. Step 2: Convert to fraction form
    20,229,881.80/30,344,822.70 = 7,447,741.60/x
  3. Step 3: Cross multiply
    20,229,881.80x = 30,344,822.70 × 7,447,741.60
  4. Step 4: Simplify right side
    20,229,881.80x = 226,000,398,367,414.31
  5. Step 5: Solve for x
    x = 226,000,398,367,414.31/20,229,881.80
  6. Step 6: Final answer
    x = 11,171,612.40

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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.