Home / 90,585,661.32-125,009,865.44-50,355,434.90

Finding the Fourth Proportional to 90,585,661.32, 125,009,865.44 and 50,355,434.90

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Solution

The fourth proportional to 90,585,661.32, 125,009,865.44 and 50,355,434.90 is: 69,491,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,585,661.32 : 125,009,865.44 = 50,355,434.90 : x
  2. Step 2: Convert to fraction form
    90,585,661.32/125,009,865.44 = 50,355,434.90/x
  3. Step 3: Cross multiply
    90,585,661.32x = 125,009,865.44 × 50,355,434.90
  4. Step 4: Simplify right side
    90,585,661.32x = 6,294,926,141,021,680
  5. Step 5: Solve for x
    x = 6,294,926,141,021,680/90,585,661.32
  6. Step 6: Final answer
    x = 69,491,418.94

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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.