Home / 636,820,289,772.35-955,364,609,380.95-206,523,822,462.86

Finding the Fourth Proportional to 636,820,289,772.35, 955,364,609,380.95 and 206,523,822,462.86

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Solution

The fourth proportional to 636,820,289,772.35, 955,364,609,380.95 and 206,523,822,462.86 is: 309,829,247,189.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,820,289,772.35 : 955,364,609,380.95 = 206,523,822,462.86 : x
  2. Step 2: Convert to fraction form
    636,820,289,772.35/955,364,609,380.95 = 206,523,822,462.86/x
  3. Step 3: Cross multiply
    636,820,289,772.35x = 955,364,609,380.95 × 206,523,822,462.86
  4. Step 4: Simplify right side
    636,820,289,772.35x = 197,305,550,975,090,892,472,320
  5. Step 5: Solve for x
    x = 197,305,550,975,090,892,472,320/636,820,289,772.35
  6. Step 6: Final answer
    x = 309,829,247,189.38

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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.