Home / 13,639,240.86-18,822,059.67-7,527,669.18

Finding the Fourth Proportional to 13,639,240.86, 18,822,059.67 and 7,527,669.18

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Solution

The fourth proportional to 13,639,240.86, 18,822,059.67 and 7,527,669.18 is: 10,388,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,240.86 : 18,822,059.67 = 7,527,669.18 : x
  2. Step 2: Convert to fraction form
    13,639,240.86/18,822,059.67 = 7,527,669.18/x
  3. Step 3: Cross multiply
    13,639,240.86x = 18,822,059.67 × 7,527,669.18
  4. Step 4: Simplify right side
    13,639,240.86x = 141,686,238,481,979.97
  5. Step 5: Solve for x
    x = 141,686,238,481,979.97/13,639,240.86
  6. Step 6: Final answer
    x = 10,388,132.30

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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.