Home / 636,820,289,798.40-955,364,609,419.84-206,523,822,488.93

Finding the Fourth Proportional to 636,820,289,798.40, 955,364,609,419.84 and 206,523,822,488.93

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Solution

The fourth proportional to 636,820,289,798.40, 955,364,609,419.84 and 206,523,822,488.93 is: 309,829,247,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,820,289,798.40 : 955,364,609,419.84 = 206,523,822,488.93 : x
  2. Step 2: Convert to fraction form
    636,820,289,798.40/955,364,609,419.84 = 206,523,822,488.93/x
  3. Step 3: Cross multiply
    636,820,289,798.40x = 955,364,609,419.84 × 206,523,822,488.93
  4. Step 4: Simplify right side
    636,820,289,798.40x = 197,305,551,008,028,963,110,912
  5. Step 5: Solve for x
    x = 197,305,551,008,028,963,110,912/636,820,289,798.40
  6. Step 6: Final answer
    x = 309,829,247,228.43

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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.