Home / 355,472,512.02-490,354,587.81-206,776,893.78

Finding the Fourth Proportional to 355,472,512.02, 490,354,587.81 and 206,776,893.78

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Solution

The fourth proportional to 355,472,512.02, 490,354,587.81 and 206,776,893.78 is: 285,237,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,472,512.02 : 490,354,587.81 = 206,776,893.78 : x
  2. Step 2: Convert to fraction form
    355,472,512.02/490,354,587.81 = 206,776,893.78/x
  3. Step 3: Cross multiply
    355,472,512.02x = 490,354,587.81 × 206,776,893.78
  4. Step 4: Simplify right side
    355,472,512.02x = 101,393,998,518,124,048
  5. Step 5: Solve for x
    x = 101,393,998,518,124,048/355,472,512.02
  6. Step 6: Final answer
    x = 285,237,240.83

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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.