Home / 13,293,447.30-18,345,007.44-8,400,843.72

Finding the Fourth Proportional to 13,293,447.30, 18,345,007.44 and 8,400,843.72

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Solution

The fourth proportional to 13,293,447.30, 18,345,007.44 and 8,400,843.72 is: 11,593,196.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293,447.30 : 18,345,007.44 = 8,400,843.72 : x
  2. Step 2: Convert to fraction form
    13,293,447.30/18,345,007.44 = 8,400,843.72/x
  3. Step 3: Cross multiply
    13,293,447.30x = 18,345,007.44 × 8,400,843.72
  4. Step 4: Simplify right side
    13,293,447.30x = 154,113,540,545,677.31
  5. Step 5: Solve for x
    x = 154,113,540,545,677.31/13,293,447.30
  6. Step 6: Final answer
    x = 11,593,196.04

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1.5x scale

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.