Home / 31,680,842.88-47,541,255.60-13,485,008.64

Finding the Fourth Proportional to 31,680,842.88, 47,541,255.60 and 13,485,008.64

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Solution

The fourth proportional to 31,680,842.88, 47,541,255.60 and 13,485,008.64 is: 20,236,022.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680,842.88 : 47,541,255.60 = 13,485,008.64 : x
  2. Step 2: Convert to fraction form
    31,680,842.88/47,541,255.60 = 13,485,008.64/x
  3. Step 3: Cross multiply
    31,680,842.88x = 47,541,255.60 × 13,485,008.64
  4. Step 4: Simplify right side
    31,680,842.88x = 641,094,242,522,448.38
  5. Step 5: Solve for x
    x = 641,094,242,522,448.38/31,680,842.88
  6. Step 6: Final answer
    x = 20,236,022.28

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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.