Home / 20,755,636.04-28,642,609.64-11,463,843.12

Finding the Fourth Proportional to 20,755,636.04, 28,642,609.64 and 11,463,843.12

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Solution

The fourth proportional to 20,755,636.04, 28,642,609.64 and 11,463,843.12 is: 15,820,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,636.04 : 28,642,609.64 = 11,463,843.12 : x
  2. Step 2: Convert to fraction form
    20,755,636.04/28,642,609.64 = 11,463,843.12/x
  3. Step 3: Cross multiply
    20,755,636.04x = 28,642,609.64 × 11,463,843.12
  4. Step 4: Simplify right side
    20,755,636.04x = 328,354,383,460,359.69
  5. Step 5: Solve for x
    x = 328,354,383,460,359.69/20,755,636.04
  6. Step 6: Final answer
    x = 15,820,010.66

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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.