Home / 636,820,289,800.40-955,364,609,422.84-206,523,822,490.93

Finding the Fourth Proportional to 636,820,289,800.40, 955,364,609,422.84 and 206,523,822,490.93

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Solution

The fourth proportional to 636,820,289,800.40, 955,364,609,422.84 and 206,523,822,490.93 is: 309,829,247,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,820,289,800.40 : 955,364,609,422.84 = 206,523,822,490.93 : x
  2. Step 2: Convert to fraction form
    636,820,289,800.40/955,364,609,422.84 = 206,523,822,490.93/x
  3. Step 3: Cross multiply
    636,820,289,800.40x = 955,364,609,422.84 × 206,523,822,490.93
  4. Step 4: Simplify right side
    636,820,289,800.40x = 197,305,551,010,559,269,273,600
  5. Step 5: Solve for x
    x = 197,305,551,010,559,269,273,600/636,820,289,800.40
  6. Step 6: Final answer
    x = 309,829,247,231.43

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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.