Home / 13,321,634.16-18,384,300.92-8,163,999.68

Finding the Fourth Proportional to 13,321,634.16, 18,384,300.92 and 8,163,999.68

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Solution

The fourth proportional to 13,321,634.16, 18,384,300.92 and 8,163,999.68 is: 11,266,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,634.16 : 18,384,300.92 = 8,163,999.68 : x
  2. Step 2: Convert to fraction form
    13,321,634.16/18,384,300.92 = 8,163,999.68/x
  3. Step 3: Cross multiply
    13,321,634.16x = 18,384,300.92 × 8,163,999.68
  4. Step 4: Simplify right side
    13,321,634.16x = 150,089,426,827,903.72
  5. Step 5: Solve for x
    x = 150,089,426,827,903.72/13,321,634.16
  6. Step 6: Final answer
    x = 11,266,592.75

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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.