Home / 31,938,375.75-47,907,947.55-8,907,908.45

Finding the Fourth Proportional to 31,938,375.75, 47,907,947.55 and 8,907,908.45

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Solution

The fourth proportional to 31,938,375.75, 47,907,947.55 and 8,907,908.45 is: 13,361,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938,375.75 : 47,907,947.55 = 8,907,908.45 : x
  2. Step 2: Convert to fraction form
    31,938,375.75/47,907,947.55 = 8,907,908.45/x
  3. Step 3: Cross multiply
    31,938,375.75x = 47,907,947.55 × 8,907,908.45
  4. Step 4: Simplify right side
    31,938,375.75x = 426,759,610,776,321.56
  5. Step 5: Solve for x
    x = 426,759,610,776,321.56/31,938,375.75
  6. Step 6: Final answer
    x = 13,361,969.75

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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.