Home / 42,297,892.40-63,448,218.12-20,135,226.80

Finding the Fourth Proportional to 42,297,892.40, 63,448,218.12 and 20,135,226.80

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Solution

The fourth proportional to 42,297,892.40, 63,448,218.12 and 20,135,226.80 is: 30,203,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,297,892.40 : 63,448,218.12 = 20,135,226.80 : x
  2. Step 2: Convert to fraction form
    42,297,892.40/63,448,218.12 = 20,135,226.80/x
  3. Step 3: Cross multiply
    42,297,892.40x = 63,448,218.12 × 20,135,226.80
  4. Step 4: Simplify right side
    42,297,892.40x = 1,277,544,261,902,069.50
  5. Step 5: Solve for x
    x = 1,277,544,261,902,069.50/42,297,892.40
  6. Step 6: Final answer
    x = 30,203,496.90

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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.