Home / 13,215,666.78-18,244,028.07-8,863,160.94

Finding the Fourth Proportional to 13,215,666.78, 18,244,028.07 and 8,863,160.94

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Solution

The fourth proportional to 13,215,666.78, 18,244,028.07 and 8,863,160.94 is: 12,235,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,666.78 : 18,244,028.07 = 8,863,160.94 : x
  2. Step 2: Convert to fraction form
    13,215,666.78/18,244,028.07 = 8,863,160.94/x
  3. Step 3: Cross multiply
    13,215,666.78x = 18,244,028.07 × 8,863,160.94
  4. Step 4: Simplify right side
    13,215,666.78x = 161,699,756,978,287.59
  5. Step 5: Solve for x
    x = 161,699,756,978,287.59/13,215,666.78
  6. Step 6: Final answer
    x = 12,235,459.60

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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.