Home / 18,979,986.02-26,192,394.90-10,278,168.17

Finding the Fourth Proportional to 18,979,986.02, 26,192,394.90 and 10,278,168.17

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Solution

The fourth proportional to 18,979,986.02, 26,192,394.90 and 10,278,168.17 is: 14,183,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979,986.02 : 26,192,394.90 = 10,278,168.17 : x
  2. Step 2: Convert to fraction form
    18,979,986.02/26,192,394.90 = 10,278,168.17/x
  3. Step 3: Cross multiply
    18,979,986.02x = 26,192,394.90 × 10,278,168.17
  4. Step 4: Simplify right side
    18,979,986.02x = 269,209,839,426,288.31
  5. Step 5: Solve for x
    x = 269,209,839,426,288.31/18,979,986.02
  6. Step 6: Final answer
    x = 14,183,879.76

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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.