Home / 13,319,407.64-18,380,781.96-7,207,836.32

Finding the Fourth Proportional to 13,319,407.64, 18,380,781.96 and 7,207,836.32

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Solution

The fourth proportional to 13,319,407.64, 18,380,781.96 and 7,207,836.32 is: 9,946,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,407.64 : 18,380,781.96 = 7,207,836.32 : x
  2. Step 2: Convert to fraction form
    13,319,407.64/18,380,781.96 = 7,207,836.32/x
  3. Step 3: Cross multiply
    13,319,407.64x = 18,380,781.96 × 7,207,836.32
  4. Step 4: Simplify right side
    13,319,407.64x = 132,485,667,801,288.80
  5. Step 5: Solve for x
    x = 132,485,667,801,288.80/13,319,407.64
  6. Step 6: Final answer
    x = 9,946,813.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.