Home / 13,489,099.03-18,613,825.27-7,981,508.85

Finding the Fourth Proportional to 13,489,099.03, 18,613,825.27 and 7,981,508.85

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Solution

The fourth proportional to 13,489,099.03, 18,613,825.27 and 7,981,508.85 is: 11,013,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489,099.03 : 18,613,825.27 = 7,981,508.85 : x
  2. Step 2: Convert to fraction form
    13,489,099.03/18,613,825.27 = 7,981,508.85/x
  3. Step 3: Cross multiply
    13,489,099.03x = 18,613,825.27 × 7,981,508.85
  4. Step 4: Simplify right side
    13,489,099.03x = 148,566,411,124,858.62
  5. Step 5: Solve for x
    x = 148,566,411,124,858.62/13,489,099.03
  6. Step 6: Final answer
    x = 11,013,812.77

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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.