Home / 90,261,640.56-124,559,785.89-51,102,399.54

Finding the Fourth Proportional to 90,261,640.56, 124,559,785.89 and 51,102,399.54

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Solution

The fourth proportional to 90,261,640.56, 124,559,785.89 and 51,102,399.54 is: 70,520,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,261,640.56 : 124,559,785.89 = 51,102,399.54 : x
  2. Step 2: Convert to fraction form
    90,261,640.56/124,559,785.89 = 51,102,399.54/x
  3. Step 3: Cross multiply
    90,261,640.56x = 124,559,785.89 × 51,102,399.54
  4. Step 4: Simplify right side
    90,261,640.56x = 6,365,303,945,167,634
  5. Step 5: Solve for x
    x = 6,365,303,945,167,634/90,261,640.56
  6. Step 6: Final answer
    x = 70,520,587.77

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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.