Home / 20,442,817.40-30,664,226.10-15,340,983.80

Finding the Fourth Proportional to 20,442,817.40, 30,664,226.10 and 15,340,983.80

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Solution

The fourth proportional to 20,442,817.40, 30,664,226.10 and 15,340,983.80 is: 23,011,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442,817.40 : 30,664,226.10 = 15,340,983.80 : x
  2. Step 2: Convert to fraction form
    20,442,817.40/30,664,226.10 = 15,340,983.80/x
  3. Step 3: Cross multiply
    20,442,817.40x = 30,664,226.10 × 15,340,983.80
  4. Step 4: Simplify right side
    20,442,817.40x = 470,419,395,839,637.25
  5. Step 5: Solve for x
    x = 470,419,395,839,637.25/20,442,817.40
  6. Step 6: Final answer
    x = 23,011,475.70

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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.