Home / 13,518,105.65-18,648,732.52-11,970,944.09

Finding the Fourth Proportional to 13,518,105.65, 18,648,732.52 and 11,970,944.09

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Solution

The fourth proportional to 13,518,105.65, 18,648,732.52 and 11,970,944.09 is: 16,514,365.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518,105.65 : 18,648,732.52 = 11,970,944.09 : x
  2. Step 2: Convert to fraction form
    13,518,105.65/18,648,732.52 = 11,970,944.09/x
  3. Step 3: Cross multiply
    13,518,105.65x = 18,648,732.52 × 11,970,944.09
  4. Step 4: Simplify right side
    13,518,105.65x = 223,242,934,346,284.81
  5. Step 5: Solve for x
    x = 223,242,934,346,284.81/13,518,105.65
  6. Step 6: Final answer
    x = 16,514,365.26

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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.