Home / 339,946,285.60-509,919,428.40-135,620,999.20

Finding the Fourth Proportional to 339,946,285.60, 509,919,428.40 and 135,620,999.20

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Solution

The fourth proportional to 339,946,285.60, 509,919,428.40 and 135,620,999.20 is: 203,431,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,946,285.60 : 509,919,428.40 = 135,620,999.20 : x
  2. Step 2: Convert to fraction form
    339,946,285.60/509,919,428.40 = 135,620,999.20/x
  3. Step 3: Cross multiply
    339,946,285.60x = 509,919,428.40 × 135,620,999.20
  4. Step 4: Simplify right side
    339,946,285.60x = 69,155,782,391,100,848
  5. Step 5: Solve for x
    x = 69,155,782,391,100,848/339,946,285.60
  6. Step 6: Final answer
    x = 203,431,498.80

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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.