Home / 20,458,460.72-28,232,822.76-11,165,946.32

Finding the Fourth Proportional to 20,458,460.72, 28,232,822.76 and 11,165,946.32

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Solution

The fourth proportional to 20,458,460.72, 28,232,822.76 and 11,165,946.32 is: 15,409,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,460.72 : 28,232,822.76 = 11,165,946.32 : x
  2. Step 2: Convert to fraction form
    20,458,460.72/28,232,822.76 = 11,165,946.32/x
  3. Step 3: Cross multiply
    20,458,460.72x = 28,232,822.76 × 11,165,946.32
  4. Step 4: Simplify right side
    20,458,460.72x = 315,246,183,400,234.25
  5. Step 5: Solve for x
    x = 315,246,183,400,234.25/20,458,460.72
  6. Step 6: Final answer
    x = 15,409,086.13

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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.