Home / 13,285,517.40-19,928,276.10-12,151,776.60

Finding the Fourth Proportional to 13,285,517.40, 19,928,276.10 and 12,151,776.60

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Solution

The fourth proportional to 13,285,517.40, 19,928,276.10 and 12,151,776.60 is: 18,227,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,517.40 : 19,928,276.10 = 12,151,776.60 : x
  2. Step 2: Convert to fraction form
    13,285,517.40/19,928,276.10 = 12,151,776.60/x
  3. Step 3: Cross multiply
    13,285,517.40x = 19,928,276.10 × 12,151,776.60
  4. Step 4: Simplify right side
    13,285,517.40x = 242,163,959,190,319.28
  5. Step 5: Solve for x
    x = 242,163,959,190,319.28/13,285,517.40
  6. Step 6: Final answer
    x = 18,227,664.90

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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.