Home / 13,269,128.88-18,304,374.88-9,131,977.52

Finding the Fourth Proportional to 13,269,128.88, 18,304,374.88 and 9,131,977.52

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Solution

The fourth proportional to 13,269,128.88, 18,304,374.88 and 9,131,977.52 is: 12,597,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,128.88 : 18,304,374.88 = 9,131,977.52 : x
  2. Step 2: Convert to fraction form
    13,269,128.88/18,304,374.88 = 9,131,977.52/x
  3. Step 3: Cross multiply
    13,269,128.88x = 18,304,374.88 × 9,131,977.52
  4. Step 4: Simplify right side
    13,269,128.88x = 167,155,139,921,812.69
  5. Step 5: Solve for x
    x = 167,155,139,921,812.69/13,269,128.88
  6. Step 6: Final answer
    x = 12,597,295.68

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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.