Home / 31,530,051.78-43,512,546.51-18,298,210.38

Finding the Fourth Proportional to 31,530,051.78, 43,512,546.51 and 18,298,210.38

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Solution

The fourth proportional to 31,530,051.78, 43,512,546.51 and 18,298,210.38 is: 25,252,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530,051.78 : 43,512,546.51 = 18,298,210.38 : x
  2. Step 2: Convert to fraction form
    31,530,051.78/43,512,546.51 = 18,298,210.38/x
  3. Step 3: Cross multiply
    31,530,051.78x = 43,512,546.51 × 18,298,210.38
  4. Step 4: Simplify right side
    31,530,051.78x = 796,201,730,209,514.75
  5. Step 5: Solve for x
    x = 796,201,730,209,514.75/31,530,051.78
  6. Step 6: Final answer
    x = 25,252,154.22

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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.