Home / 12,653,183.80-18,979,775.70-9,269,068.60

Finding the Fourth Proportional to 12,653,183.80, 18,979,775.70 and 9,269,068.60

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Solution

The fourth proportional to 12,653,183.80, 18,979,775.70 and 9,269,068.60 is: 13,903,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653,183.80 : 18,979,775.70 = 9,269,068.60 : x
  2. Step 2: Convert to fraction form
    12,653,183.80/18,979,775.70 = 9,269,068.60/x
  3. Step 3: Cross multiply
    12,653,183.80x = 18,979,775.70 × 9,269,068.60
  4. Step 4: Simplify right side
    12,653,183.80x = 175,924,842,975,913
  5. Step 5: Solve for x
    x = 175,924,842,975,913/12,653,183.80
  6. Step 6: Final answer
    x = 13,903,602.90

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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.