Home / 13,285,557.40-19,928,336.10-12,151,816.60

Finding the Fourth Proportional to 13,285,557.40, 19,928,336.10 and 12,151,816.60

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Solution

The fourth proportional to 13,285,557.40, 19,928,336.10 and 12,151,816.60 is: 18,227,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,557.40 : 19,928,336.10 = 12,151,816.60 : x
  2. Step 2: Convert to fraction form
    13,285,557.40/19,928,336.10 = 12,151,816.60/x
  3. Step 3: Cross multiply
    13,285,557.40x = 19,928,336.10 × 12,151,816.60
  4. Step 4: Simplify right side
    13,285,557.40x = 242,165,485,430,359.28
  5. Step 5: Solve for x
    x = 242,165,485,430,359.28/13,285,557.40
  6. Step 6: Final answer
    x = 18,227,724.90

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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.