Home / 461,352,999.49-636,598,650.81-280,205,715.30

Finding the Fourth Proportional to 461,352,999.49, 636,598,650.81 and 280,205,715.30

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Solution

The fourth proportional to 461,352,999.49, 636,598,650.81 and 280,205,715.30 is: 386,642,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,352,999.49 : 636,598,650.81 = 280,205,715.30 : x
  2. Step 2: Convert to fraction form
    461,352,999.49/636,598,650.81 = 280,205,715.30/x
  3. Step 3: Cross multiply
    461,352,999.49x = 636,598,650.81 × 280,205,715.30
  4. Step 4: Simplify right side
    461,352,999.49x = 178,378,580,309,230,976
  5. Step 5: Solve for x
    x = 178,378,580,309,230,976/461,352,999.49
  6. Step 6: Final answer
    x = 386,642,290.19

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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.