Home / 20,291,760.94-30,405,733.08-15,691,975.06

Finding the Fourth Proportional to 20,291,760.94, 30,405,733.08 and 15,691,975.06

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Solution

The fourth proportional to 20,291,760.94, 30,405,733.08 and 15,691,975.06 is: 23,513,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291,760.94 : 30,405,733.08 = 15,691,975.06 : x
  2. Step 2: Convert to fraction form
    20,291,760.94/30,405,733.08 = 15,691,975.06/x
  3. Step 3: Cross multiply
    20,291,760.94x = 30,405,733.08 × 15,691,975.06
  4. Step 4: Simplify right side
    20,291,760.94x = 477,126,005,172,377
  5. Step 5: Solve for x
    x = 477,126,005,172,377/20,291,760.94
  6. Step 6: Final answer
    x = 23,513,287.32

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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.