Home / 18,202,762.49-25,119,642.41-9,942,821.61

Finding the Fourth Proportional to 18,202,762.49, 25,119,642.41 and 9,942,821.61

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Solution

The fourth proportional to 18,202,762.49, 25,119,642.41 and 9,942,821.61 is: 13,721,001.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,202,762.49 : 25,119,642.41 = 9,942,821.61 : x
  2. Step 2: Convert to fraction form
    18,202,762.49/25,119,642.41 = 9,942,821.61/x
  3. Step 3: Cross multiply
    18,202,762.49x = 25,119,642.41 × 9,942,821.61
  4. Step 4: Simplify right side
    18,202,762.49x = 249,760,123,389,620.47
  5. Step 5: Solve for x
    x = 249,760,123,389,620.47/18,202,762.49
  6. Step 6: Final answer
    x = 13,721,001.06

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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.