Home / 378,082,128.60-567,123,192.90-147,974,736.60

Finding the Fourth Proportional to 378,082,128.60, 567,123,192.90 and 147,974,736.60

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Solution

The fourth proportional to 378,082,128.60, 567,123,192.90 and 147,974,736.60 is: 221,962,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,082,128.60 : 567,123,192.90 = 147,974,736.60 : x
  2. Step 2: Convert to fraction form
    378,082,128.60/567,123,192.90 = 147,974,736.60/x
  3. Step 3: Cross multiply
    378,082,128.60x = 567,123,192.90 × 147,974,736.60
  4. Step 4: Simplify right side
    378,082,128.60x = 83,919,905,089,128,480
  5. Step 5: Solve for x
    x = 83,919,905,089,128,480/378,082,128.60
  6. Step 6: Final answer
    x = 221,962,104.90

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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.