Home / 12,285,964.20-18,428,946.30-6,239,346.60

Finding the Fourth Proportional to 12,285,964.20, 18,428,946.30 and 6,239,346.60

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Solution

The fourth proportional to 12,285,964.20, 18,428,946.30 and 6,239,346.60 is: 9,359,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,964.20 : 18,428,946.30 = 6,239,346.60 : x
  2. Step 2: Convert to fraction form
    12,285,964.20/18,428,946.30 = 6,239,346.60/x
  3. Step 3: Cross multiply
    12,285,964.20x = 18,428,946.30 × 6,239,346.60
  4. Step 4: Simplify right side
    12,285,964.20x = 114,984,583,438,487.58
  5. Step 5: Solve for x
    x = 114,984,583,438,487.58/12,285,964.20
  6. Step 6: Final answer
    x = 9,359,019.90

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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.