Home / 15,401,389.66-21,254,168.39-8,431,949.59

Finding the Fourth Proportional to 15,401,389.66, 21,254,168.39 and 8,431,949.59

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Solution

The fourth proportional to 15,401,389.66, 21,254,168.39 and 8,431,949.59 is: 11,636,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,389.66 : 21,254,168.39 = 8,431,949.59 : x
  2. Step 2: Convert to fraction form
    15,401,389.66/21,254,168.39 = 8,431,949.59/x
  3. Step 3: Cross multiply
    15,401,389.66x = 21,254,168.39 × 8,431,949.59
  4. Step 4: Simplify right side
    15,401,389.66x = 179,214,076,346,556.31
  5. Step 5: Solve for x
    x = 179,214,076,346,556.31/15,401,389.66
  6. Step 6: Final answer
    x = 11,636,227.66

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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.