Home / 20,368,418.38-28,108,752.30-11,076,172.49

Finding the Fourth Proportional to 20,368,418.38, 28,108,752.30 and 11,076,172.49

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Solution

The fourth proportional to 20,368,418.38, 28,108,752.30 and 11,076,172.49 is: 15,285,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,418.38 : 28,108,752.30 = 11,076,172.49 : x
  2. Step 2: Convert to fraction form
    20,368,418.38/28,108,752.30 = 11,076,172.49/x
  3. Step 3: Cross multiply
    20,368,418.38x = 28,108,752.30 × 11,076,172.49
  4. Step 4: Simplify right side
    20,368,418.38x = 311,337,389,023,756.12
  5. Step 5: Solve for x
    x = 311,337,389,023,756.12/20,368,418.38
  6. Step 6: Final answer
    x = 15,285,300.18

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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.