Home / 13,309,212.87-18,366,769.11-7,197,641.37

Finding the Fourth Proportional to 13,309,212.87, 18,366,769.11 and 7,197,641.37

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Solution

The fourth proportional to 13,309,212.87, 18,366,769.11 and 7,197,641.37 is: 9,932,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,212.87 : 18,366,769.11 = 7,197,641.37 : x
  2. Step 2: Convert to fraction form
    13,309,212.87/18,366,769.11 = 7,197,641.37/x
  3. Step 3: Cross multiply
    13,309,212.87x = 18,366,769.11 × 7,197,641.37
  4. Step 4: Simplify right side
    13,309,212.87x = 132,197,417,179,374.08
  5. Step 5: Solve for x
    x = 132,197,417,179,374.08/13,309,212.87
  6. Step 6: Final answer
    x = 9,932,775.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.