Home / 826,685,999.20-1,240,028,998.80-742,505,744.80

Finding the Fourth Proportional to 826,685,999.20, 1,240,028,998.80 and 742,505,744.80

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Solution

The fourth proportional to 826,685,999.20, 1,240,028,998.80 and 742,505,744.80 is: 1,113,758,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,999.20 : 1,240,028,998.80 = 742,505,744.80 : x
  2. Step 2: Convert to fraction form
    826,685,999.20/1,240,028,998.80 = 742,505,744.80/x
  3. Step 3: Cross multiply
    826,685,999.20x = 1,240,028,998.80 × 742,505,744.80
  4. Step 4: Simplify right side
    826,685,999.20x = 920,728,655,327,592,192
  5. Step 5: Solve for x
    x = 920,728,655,327,592,192/826,685,999.20
  6. Step 6: Final answer
    x = 1,113,758,617.20

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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.