Home / 636,820,289,801.40-955,364,609,424.34-206,523,822,491.93

Finding the Fourth Proportional to 636,820,289,801.40, 955,364,609,424.34 and 206,523,822,491.93

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Solution

The fourth proportional to 636,820,289,801.40, 955,364,609,424.34 and 206,523,822,491.93 is: 309,829,247,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,820,289,801.40 : 955,364,609,424.34 = 206,523,822,491.93 : x
  2. Step 2: Convert to fraction form
    636,820,289,801.40/955,364,609,424.34 = 206,523,822,491.93/x
  3. Step 3: Cross multiply
    636,820,289,801.40x = 955,364,609,424.34 × 206,523,822,491.93
  4. Step 4: Simplify right side
    636,820,289,801.40x = 197,305,551,011,824,405,577,728
  5. Step 5: Solve for x
    x = 197,305,551,011,824,405,577,728/636,820,289,801.40
  6. Step 6: Final answer
    x = 309,829,247,232.93

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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.