Home / 13,103,911.95-18,078,071.94-8,695,716.38

Finding the Fourth Proportional to 13,103,911.95, 18,078,071.94 and 8,695,716.38

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Solution

The fourth proportional to 13,103,911.95, 18,078,071.94 and 8,695,716.38 is: 11,996,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,911.95 : 18,078,071.94 = 8,695,716.38 : x
  2. Step 2: Convert to fraction form
    13,103,911.95/18,078,071.94 = 8,695,716.38/x
  3. Step 3: Cross multiply
    13,103,911.95x = 18,078,071.94 × 8,695,716.38
  4. Step 4: Simplify right side
    13,103,911.95x = 157,201,786,287,476.41
  5. Step 5: Solve for x
    x = 157,201,786,287,476.41/13,103,911.95
  6. Step 6: Final answer
    x = 11,996,553.92

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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.