Home / 679,953,998.20-1,019,930,997.30-219,938,668.60

Finding the Fourth Proportional to 679,953,998.20, 1,019,930,997.30 and 219,938,668.60

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Solution

The fourth proportional to 679,953,998.20, 1,019,930,997.30 and 219,938,668.60 is: 329,908,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,953,998.20 : 1,019,930,997.30 = 219,938,668.60 : x
  2. Step 2: Convert to fraction form
    679,953,998.20/1,019,930,997.30 = 219,938,668.60/x
  3. Step 3: Cross multiply
    679,953,998.20x = 1,019,930,997.30 × 219,938,668.60
  4. Step 4: Simplify right side
    679,953,998.20x = 224,322,265,610,032,192
  5. Step 5: Solve for x
    x = 224,322,265,610,032,192/679,953,998.20
  6. Step 6: Final answer
    x = 329,908,002.90

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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.