Home / 13,689,218.99-18,891,092.66-7,494,215.50

Finding the Fourth Proportional to 13,689,218.99, 18,891,092.66 and 7,494,215.50

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Solution

The fourth proportional to 13,689,218.99, 18,891,092.66 and 7,494,215.50 is: 10,342,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,218.99 : 18,891,092.66 = 7,494,215.50 : x
  2. Step 2: Convert to fraction form
    13,689,218.99/18,891,092.66 = 7,494,215.50/x
  3. Step 3: Cross multiply
    13,689,218.99x = 18,891,092.66 × 7,494,215.50
  4. Step 4: Simplify right side
    13,689,218.99x = 141,573,919,424,508.22
  5. Step 5: Solve for x
    x = 141,573,919,424,508.22/13,689,218.99
  6. Step 6: Final answer
    x = 10,342,001.21

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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.