Home / 8,505,417.28-12,758,171.84-2,115,669.64

Finding the Fourth Proportional to 8,505,417.28, 12,758,171.84 and 2,115,669.64

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Solution

The fourth proportional to 8,505,417.28, 12,758,171.84 and 2,115,669.64 is: 3,173,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505,417.28 : 12,758,171.84 = 2,115,669.64 : x
  2. Step 2: Convert to fraction form
    8,505,417.28/12,758,171.84 = 2,115,669.64/x
  3. Step 3: Cross multiply
    8,505,417.28x = 12,758,171.84 × 2,115,669.64
  4. Step 4: Simplify right side
    8,505,417.28x = 26,992,076,823,790.94
  5. Step 5: Solve for x
    x = 26,992,076,823,790.94/8,505,417.28
  6. Step 6: Final answer
    x = 3,173,515.88

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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.