Home / 13,194,998.87-18,198,302.64-9,287,689.64

Finding the Fourth Proportional to 13,194,998.87, 18,198,302.64 and 9,287,689.64

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Solution

The fourth proportional to 13,194,998.87, 18,198,302.64 and 9,287,689.64 is: 12,809,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194,998.87 : 18,198,302.64 = 9,287,689.64 : x
  2. Step 2: Convert to fraction form
    13,194,998.87/18,198,302.64 = 9,287,689.64/x
  3. Step 3: Cross multiply
    13,194,998.87x = 18,198,302.64 × 9,287,689.64
  4. Step 4: Simplify right side
    13,194,998.87x = 169,020,186,804,121.12
  5. Step 5: Solve for x
    x = 169,020,186,804,121.12/13,194,998.87
  6. Step 6: Final answer
    x = 12,809,412.76

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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.