Home / 20,501,443.20-28,292,582.07-11,334,676.44

Finding the Fourth Proportional to 20,501,443.20, 28,292,582.07 and 11,334,676.44

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Solution

The fourth proportional to 20,501,443.20, 28,292,582.07 and 11,334,676.44 is: 15,642,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,443.20 : 28,292,582.07 = 11,334,676.44 : x
  2. Step 2: Convert to fraction form
    20,501,443.20/28,292,582.07 = 11,334,676.44/x
  3. Step 3: Cross multiply
    20,501,443.20x = 28,292,582.07 × 11,334,676.44
  4. Step 4: Simplify right side
    20,501,443.20x = 320,687,263,415,595.44
  5. Step 5: Solve for x
    x = 320,687,263,415,595.44/20,501,443.20
  6. Step 6: Final answer
    x = 15,642,179.93

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1.5x scale

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.