Home / 12,153,930.22-18,243,741.38-11,879,475.39

Finding the Fourth Proportional to 12,153,930.22, 18,243,741.38 and 11,879,475.39

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Solution

The fourth proportional to 12,153,930.22, 18,243,741.38 and 11,879,475.39 is: 17,831,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153,930.22 : 18,243,741.38 = 11,879,475.39 : x
  2. Step 2: Convert to fraction form
    12,153,930.22/18,243,741.38 = 11,879,475.39/x
  3. Step 3: Cross multiply
    12,153,930.22x = 18,243,741.38 × 11,879,475.39
  4. Step 4: Simplify right side
    12,153,930.22x = 216,726,076,685,837.28
  5. Step 5: Solve for x
    x = 216,726,076,685,837.28/12,153,930.22
  6. Step 6: Final answer
    x = 17,831,769.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.