Home / 12,982,720.20-19,474,080.30-5,408,701.80

Finding the Fourth Proportional to 12,982,720.20, 19,474,080.30 and 5,408,701.80

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Solution

The fourth proportional to 12,982,720.20, 19,474,080.30 and 5,408,701.80 is: 8,113,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,720.20 : 19,474,080.30 = 5,408,701.80 : x
  2. Step 2: Convert to fraction form
    12,982,720.20/19,474,080.30 = 5,408,701.80/x
  3. Step 3: Cross multiply
    12,982,720.20x = 19,474,080.30 × 5,408,701.80
  4. Step 4: Simplify right side
    12,982,720.20x = 105,329,493,171,954.55
  5. Step 5: Solve for x
    x = 105,329,493,171,954.55/12,982,720.20
  6. Step 6: Final answer
    x = 8,113,052.70

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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.