Home / 20,186,145.55-30,243,132.83-12,284,514.55

Finding the Fourth Proportional to 20,186,145.55, 30,243,132.83 and 12,284,514.55

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Solution

The fourth proportional to 20,186,145.55, 30,243,132.83 and 12,284,514.55 is: 18,404,811.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,145.55 : 30,243,132.83 = 12,284,514.55 : x
  2. Step 2: Convert to fraction form
    20,186,145.55/30,243,132.83 = 12,284,514.55/x
  3. Step 3: Cross multiply
    20,186,145.55x = 30,243,132.83 × 12,284,514.55
  4. Step 4: Simplify right side
    20,186,145.55x = 371,522,205,226,295.12
  5. Step 5: Solve for x
    x = 371,522,205,226,295.12/20,186,145.55
  6. Step 6: Final answer
    x = 18,404,811.57

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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.