Home / 12,687,193.81-17,508,066.33-7,180,469.97

Finding the Fourth Proportional to 12,687,193.81, 17,508,066.33 and 7,180,469.97

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Solution

The fourth proportional to 12,687,193.81, 17,508,066.33 and 7,180,469.97 is: 9,908,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,193.81 : 17,508,066.33 = 7,180,469.97 : x
  2. Step 2: Convert to fraction form
    12,687,193.81/17,508,066.33 = 7,180,469.97/x
  3. Step 3: Cross multiply
    12,687,193.81x = 17,508,066.33 × 7,180,469.97
  4. Step 4: Simplify right side
    12,687,193.81x = 125,716,144,515,333.09
  5. Step 5: Solve for x
    x = 125,716,144,515,333.09/12,687,193.81
  6. Step 6: Final answer
    x = 9,908,900.77

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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.