Home / 20,587,907.80-30,889,349.70-7,126,096.60

Finding the Fourth Proportional to 20,587,907.80, 30,889,349.70 and 7,126,096.60

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Solution

The fourth proportional to 20,587,907.80, 30,889,349.70 and 7,126,096.60 is: 10,691,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,907.80 : 30,889,349.70 = 7,126,096.60 : x
  2. Step 2: Convert to fraction form
    20,587,907.80/30,889,349.70 = 7,126,096.60/x
  3. Step 3: Cross multiply
    20,587,907.80x = 30,889,349.70 × 7,126,096.60
  4. Step 4: Simplify right side
    20,587,907.80x = 220,120,489,873,381
  5. Step 5: Solve for x
    x = 220,120,489,873,381/20,587,907.80
  6. Step 6: Final answer
    x = 10,691,736.72

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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.