Home / 20,199,412.55-30,303,055.43-8,684,857.55

Finding the Fourth Proportional to 20,199,412.55, 30,303,055.43 and 8,684,857.55

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Solution

The fourth proportional to 20,199,412.55, 30,303,055.43 and 8,684,857.55 is: 13,028,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,412.55 : 30,303,055.43 = 8,684,857.55 : x
  2. Step 2: Convert to fraction form
    20,199,412.55/30,303,055.43 = 8,684,857.55/x
  3. Step 3: Cross multiply
    20,199,412.55x = 30,303,055.43 × 8,684,857.55
  4. Step 4: Simplify right side
    20,199,412.55x = 263,177,719,695,879.75
  5. Step 5: Solve for x
    x = 263,177,719,695,879.75/20,199,412.55
  6. Step 6: Final answer
    x = 13,028,978.89

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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.