Home / 355,546,231.32-490,672,860.12-198,903,996.30

Finding the Fourth Proportional to 355,546,231.32, 490,672,860.12 and 198,903,996.30

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Solution

The fourth proportional to 355,546,231.32, 490,672,860.12 and 198,903,996.30 is: 274,498,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,546,231.32 : 490,672,860.12 = 198,903,996.30 : x
  2. Step 2: Convert to fraction form
    355,546,231.32/490,672,860.12 = 198,903,996.30/x
  3. Step 3: Cross multiply
    355,546,231.32x = 490,672,860.12 × 198,903,996.30
  4. Step 4: Simplify right side
    355,546,231.32x = 97,596,792,753,818,912
  5. Step 5: Solve for x
    x = 97,596,792,753,818,912/355,546,231.32
  6. Step 6: Final answer
    x = 274,498,178.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.