Home / 13,639,740.80-18,821,502.24-7,527,774.56

Finding the Fourth Proportional to 13,639,740.80, 18,821,502.24 and 7,527,774.56

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Solution

The fourth proportional to 13,639,740.80, 18,821,502.24 and 7,527,774.56 is: 10,387,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,740.80 : 18,821,502.24 = 7,527,774.56 : x
  2. Step 2: Convert to fraction form
    13,639,740.80/18,821,502.24 = 7,527,774.56/x
  3. Step 3: Cross multiply
    13,639,740.80x = 18,821,502.24 × 7,527,774.56
  4. Step 4: Simplify right side
    13,639,740.80x = 141,684,025,743,255
  5. Step 5: Solve for x
    x = 141,684,025,743,255/13,639,740.80
  6. Step 6: Final answer
    x = 10,387,589.31

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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.