Home / 20,549,372.05-28,357,121.37-11,256,982.39

Finding the Fourth Proportional to 20,549,372.05, 28,357,121.37 and 11,256,982.39

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Solution

The fourth proportional to 20,549,372.05, 28,357,121.37 and 11,256,982.39 is: 15,534,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549,372.05 : 28,357,121.37 = 11,256,982.39 : x
  2. Step 2: Convert to fraction form
    20,549,372.05/28,357,121.37 = 11,256,982.39/x
  3. Step 3: Cross multiply
    20,549,372.05x = 28,357,121.37 × 11,256,982.39
  4. Step 4: Simplify right side
    20,549,372.05x = 319,215,615,893,182.69
  5. Step 5: Solve for x
    x = 319,215,615,893,182.69/20,549,372.05
  6. Step 6: Final answer
    x = 15,534,081.29

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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.