Home / 12,384,781.10-18,548,888.26-5,912,409.28

Finding the Fourth Proportional to 12,384,781.10, 18,548,888.26 and 5,912,409.28

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Solution

The fourth proportional to 12,384,781.10, 18,548,888.26 and 5,912,409.28 is: 8,855,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384,781.10 : 18,548,888.26 = 5,912,409.28 : x
  2. Step 2: Convert to fraction form
    12,384,781.10/18,548,888.26 = 5,912,409.28/x
  3. Step 3: Cross multiply
    12,384,781.10x = 18,548,888.26 × 5,912,409.28
  4. Step 4: Simplify right side
    12,384,781.10x = 109,668,619,082,107.06
  5. Step 5: Solve for x
    x = 109,668,619,082,107.06/12,384,781.10
  6. Step 6: Final answer
    x = 8,855,111.62

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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.