Home / 20,590,253.70-28,402,744.77-12,841,843.86

Finding the Fourth Proportional to 20,590,253.70, 28,402,744.77 and 12,841,843.86

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Solution

The fourth proportional to 20,590,253.70, 28,402,744.77 and 12,841,843.86 is: 17,714,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590,253.70 : 28,402,744.77 = 12,841,843.86 : x
  2. Step 2: Convert to fraction form
    20,590,253.70/28,402,744.77 = 12,841,843.86/x
  3. Step 3: Cross multiply
    20,590,253.70x = 28,402,744.77 × 12,841,843.86
  4. Step 4: Simplify right side
    20,590,253.70x = 364,743,613,531,771.56
  5. Step 5: Solve for x
    x = 364,743,613,531,771.56/20,590,253.70
  6. Step 6: Final answer
    x = 17,714,381.71

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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.