Home / 766,907,999.20-1,150,361,998.80-214,209,359.20

Finding the Fourth Proportional to 766,907,999.20, 1,150,361,998.80 and 214,209,359.20

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Solution

The fourth proportional to 766,907,999.20, 1,150,361,998.80 and 214,209,359.20 is: 321,314,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,907,999.20 : 1,150,361,998.80 = 214,209,359.20 : x
  2. Step 2: Convert to fraction form
    766,907,999.20/1,150,361,998.80 = 214,209,359.20/x
  3. Step 3: Cross multiply
    766,907,999.20x = 1,150,361,998.80 × 214,209,359.20
  4. Step 4: Simplify right side
    766,907,999.20x = 246,418,306,610,979,136
  5. Step 5: Solve for x
    x = 246,418,306,610,979,136/766,907,999.20
  6. Step 6: Final answer
    x = 321,314,038.80

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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.