Home / 13,185,986.20-19,778,979.30-8,084,152.60

Finding the Fourth Proportional to 13,185,986.20, 19,778,979.30 and 8,084,152.60

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Solution

The fourth proportional to 13,185,986.20, 19,778,979.30 and 8,084,152.60 is: 12,126,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185,986.20 : 19,778,979.30 = 8,084,152.60 : x
  2. Step 2: Convert to fraction form
    13,185,986.20/19,778,979.30 = 8,084,152.60/x
  3. Step 3: Cross multiply
    13,185,986.20x = 19,778,979.30 × 8,084,152.60
  4. Step 4: Simplify right side
    13,185,986.20x = 159,896,286,933,441.19
  5. Step 5: Solve for x
    x = 159,896,286,933,441.19/13,185,986.20
  6. Step 6: Final answer
    x = 12,126,228.90

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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.