Home / 20,233,379.70-30,350,069.55-18,107,615.70

Finding the Fourth Proportional to 20,233,379.70, 30,350,069.55 and 18,107,615.70

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Solution

The fourth proportional to 20,233,379.70, 30,350,069.55 and 18,107,615.70 is: 27,161,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233,379.70 : 30,350,069.55 = 18,107,615.70 : x
  2. Step 2: Convert to fraction form
    20,233,379.70/30,350,069.55 = 18,107,615.70/x
  3. Step 3: Cross multiply
    20,233,379.70x = 30,350,069.55 × 18,107,615.70
  4. Step 4: Simplify right side
    20,233,379.70x = 549,567,395,879,671.94
  5. Step 5: Solve for x
    x = 549,567,395,879,671.94/20,233,379.70
  6. Step 6: Final answer
    x = 27,161,423.55

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Similar ratio
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1.5x scale

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.