Home / 20,662,720.37-28,514,816.44-11,371,360.22

Finding the Fourth Proportional to 20,662,720.37, 28,514,816.44 and 11,371,360.22

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Solution

The fourth proportional to 20,662,720.37, 28,514,816.44 and 11,371,360.22 is: 15,692,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,720.37 : 28,514,816.44 = 11,371,360.22 : x
  2. Step 2: Convert to fraction form
    20,662,720.37/28,514,816.44 = 11,371,360.22/x
  3. Step 3: Cross multiply
    20,662,720.37x = 28,514,816.44 × 11,371,360.22
  4. Step 4: Simplify right side
    20,662,720.37x = 324,252,249,346,418.06
  5. Step 5: Solve for x
    x = 324,252,249,346,418.06/20,662,720.37
  6. Step 6: Final answer
    x = 15,692,621.47

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Double scale
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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.