Home / 90,585,914.31-125,010,217.31-50,355,687.40

Finding the Fourth Proportional to 90,585,914.31, 125,010,217.31 and 50,355,687.40

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Solution

The fourth proportional to 90,585,914.31, 125,010,217.31 and 50,355,687.40 is: 69,491,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,585,914.31 : 125,010,217.31 = 50,355,687.40 : x
  2. Step 2: Convert to fraction form
    90,585,914.31/125,010,217.31 = 50,355,687.40/x
  3. Step 3: Cross multiply
    90,585,914.31x = 125,010,217.31 × 50,355,687.40
  4. Step 4: Simplify right side
    90,585,914.31x = 6,294,975,424,104,125
  5. Step 5: Solve for x
    x = 6,294,975,424,104,125/90,585,914.31
  6. Step 6: Final answer
    x = 69,491,768.91

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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.