Home / 70,589,147.88-105,792,178.86-31,698,883.56

Finding the Fourth Proportional to 70,589,147.88, 105,792,178.86 and 31,698,883.56

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Solution

The fourth proportional to 70,589,147.88, 105,792,178.86 and 31,698,883.56 is: 47,507,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,589,147.88 : 105,792,178.86 = 31,698,883.56 : x
  2. Step 2: Convert to fraction form
    70,589,147.88/105,792,178.86 = 31,698,883.56/x
  3. Step 3: Cross multiply
    70,589,147.88x = 105,792,178.86 × 31,698,883.56
  4. Step 4: Simplify right side
    70,589,147.88x = 3,353,493,959,241,833.50
  5. Step 5: Solve for x
    x = 3,353,493,959,241,833.50/70,589,147.88
  6. Step 6: Final answer
    x = 47,507,216.90

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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.