Home / 20,142,121.33-30,219,077.65-6,494,993.25

Finding the Fourth Proportional to 20,142,121.33, 30,219,077.65 and 6,494,993.25

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Solution

The fourth proportional to 20,142,121.33, 30,219,077.65 and 6,494,993.25 is: 9,744,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,121.33 : 30,219,077.65 = 6,494,993.25 : x
  2. Step 2: Convert to fraction form
    20,142,121.33/30,219,077.65 = 6,494,993.25/x
  3. Step 3: Cross multiply
    20,142,121.33x = 30,219,077.65 × 6,494,993.25
  4. Step 4: Simplify right side
    20,142,121.33x = 196,272,705,357,975.84
  5. Step 5: Solve for x
    x = 196,272,705,357,975.84/20,142,121.33
  6. Step 6: Final answer
    x = 9,744,390.98

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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.