Home / 142,003,089,056.46-195,970,422,889.61-78,638,315,744.47

Finding the Fourth Proportional to 142,003,089,056.46, 195,970,422,889.61 and 78,638,315,744.47

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Solution

The fourth proportional to 142,003,089,056.46, 195,970,422,889.61 and 78,638,315,744.47 is: 108,524,287,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,003,089,056.46 : 195,970,422,889.61 = 78,638,315,744.47 : x
  2. Step 2: Convert to fraction form
    142,003,089,056.46/195,970,422,889.61 = 78,638,315,744.47/x
  3. Step 3: Cross multiply
    142,003,089,056.46x = 195,970,422,889.61 × 78,638,315,744.47
  4. Step 4: Simplify right side
    142,003,089,056.46x = 15,410,783,991,770,462,027,776
  5. Step 5: Solve for x
    x = 15,410,783,991,770,462,027,776/142,003,089,056.46
  6. Step 6: Final answer
    x = 108,524,287,000.85

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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.