Home / 70,589,141.88-105,792,169.86-31,698,877.56

Finding the Fourth Proportional to 70,589,141.88, 105,792,169.86 and 31,698,877.56

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Solution

The fourth proportional to 70,589,141.88, 105,792,169.86 and 31,698,877.56 is: 47,507,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,589,141.88 : 105,792,169.86 = 31,698,877.56 : x
  2. Step 2: Convert to fraction form
    70,589,141.88/105,792,169.86 = 31,698,877.56/x
  3. Step 3: Cross multiply
    70,589,141.88x = 105,792,169.86 × 31,698,877.56
  4. Step 4: Simplify right side
    70,589,141.88x = 3,353,493,039,198,862
  5. Step 5: Solve for x
    x = 3,353,493,039,198,862/70,589,141.88
  6. Step 6: Final answer
    x = 47,507,207.91

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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.