Home / 12,255,126.84-18,384,686.10-3,620,103.48

Finding the Fourth Proportional to 12,255,126.84, 18,384,686.10 and 3,620,103.48

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Solution

The fourth proportional to 12,255,126.84, 18,384,686.10 and 3,620,103.48 is: 5,430,744.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,126.84 : 18,384,686.10 = 3,620,103.48 : x
  2. Step 2: Convert to fraction form
    12,255,126.84/18,384,686.10 = 3,620,103.48/x
  3. Step 3: Cross multiply
    12,255,126.84x = 18,384,686.10 × 3,620,103.48
  4. Step 4: Simplify right side
    12,255,126.84x = 66,554,466,129,317.63
  5. Step 5: Solve for x
    x = 66,554,466,129,317.63/12,255,126.84
  6. Step 6: Final answer
    x = 5,430,744.78

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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.