Home / 12,078,809.28-18,112,615.20-4,503,741.12

Finding the Fourth Proportional to 12,078,809.28, 18,112,615.20 and 4,503,741.12

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Solution

The fourth proportional to 12,078,809.28, 18,112,615.20 and 4,503,741.12 is: 6,753,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,809.28 : 18,112,615.20 = 4,503,741.12 : x
  2. Step 2: Convert to fraction form
    12,078,809.28/18,112,615.20 = 4,503,741.12/x
  3. Step 3: Cross multiply
    12,078,809.28x = 18,112,615.20 × 4,503,741.12
  4. Step 4: Simplify right side
    12,078,809.28x = 81,574,529,866,977.02
  5. Step 5: Solve for x
    x = 81,574,529,866,977.02/12,078,809.28
  6. Step 6: Final answer
    x = 6,753,524.12

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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.