Home / 15,379,736.69-21,223,981.16-8,673,536.30

Finding the Fourth Proportional to 15,379,736.69, 21,223,981.16 and 8,673,536.30

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Solution

The fourth proportional to 15,379,736.69, 21,223,981.16 and 8,673,536.30 is: 11,969,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379,736.69 : 21,223,981.16 = 8,673,536.30 : x
  2. Step 2: Convert to fraction form
    15,379,736.69/21,223,981.16 = 8,673,536.30/x
  3. Step 3: Cross multiply
    15,379,736.69x = 21,223,981.16 × 8,673,536.30
  4. Step 4: Simplify right side
    15,379,736.69x = 184,086,970,904,814.28
  5. Step 5: Solve for x
    x = 184,086,970,904,814.28/15,379,736.69
  6. Step 6: Final answer
    x = 11,969,448.80

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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.