Home / 20,590,249.20-28,402,738.56-12,841,839.36

Finding the Fourth Proportional to 20,590,249.20, 28,402,738.56 and 12,841,839.36

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Solution

The fourth proportional to 20,590,249.20, 28,402,738.56 and 12,841,839.36 is: 17,714,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590,249.20 : 28,402,738.56 = 12,841,839.36 : x
  2. Step 2: Convert to fraction form
    20,590,249.20/28,402,738.56 = 12,841,839.36/x
  3. Step 3: Cross multiply
    20,590,249.20x = 28,402,738.56 × 12,841,839.36
  4. Step 4: Simplify right side
    20,590,249.20x = 364,743,405,971,597.69
  5. Step 5: Solve for x
    x = 364,743,405,971,597.69/20,590,249.20
  6. Step 6: Final answer
    x = 17,714,375.50

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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.