Home / 12,474,898.20-18,719,345.70-5,285,208.60

Finding the Fourth Proportional to 12,474,898.20, 18,719,345.70 and 5,285,208.60

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Solution

The fourth proportional to 12,474,898.20, 18,719,345.70 and 5,285,208.60 is: 7,930,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,898.20 : 18,719,345.70 = 5,285,208.60 : x
  2. Step 2: Convert to fraction form
    12,474,898.20/18,719,345.70 = 5,285,208.60/x
  3. Step 3: Cross multiply
    12,474,898.20x = 18,719,345.70 × 5,285,208.60
  4. Step 4: Simplify right side
    12,474,898.20x = 98,935,646,880,013.02
  5. Step 5: Solve for x
    x = 98,935,646,880,013.02/12,474,898.20
  6. Step 6: Final answer
    x = 7,930,777.89

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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.