Home / 639,576,091.20-959,084,200.80-294,415,003.20

Finding the Fourth Proportional to 639,576,091.20, 959,084,200.80 and 294,415,003.20

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Solution

The fourth proportional to 639,576,091.20, 959,084,200.80 and 294,415,003.20 is: 441,493,642.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,576,091.20 : 959,084,200.80 = 294,415,003.20 : x
  2. Step 2: Convert to fraction form
    639,576,091.20/959,084,200.80 = 294,415,003.20/x
  3. Step 3: Cross multiply
    639,576,091.20x = 959,084,200.80 × 294,415,003.20
  4. Step 4: Simplify right side
    639,576,091.20x = 282,368,778,047,601,408
  5. Step 5: Solve for x
    x = 282,368,778,047,601,408/639,576,091.20
  6. Step 6: Final answer
    x = 441,493,642.32

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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.