Home / 90,457,830.21-135,701,879.60-71,026,272.33

Finding the Fourth Proportional to 90,457,830.21, 135,701,879.60 and 71,026,272.33

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Solution

The fourth proportional to 90,457,830.21, 135,701,879.60 and 71,026,272.33 is: 106,551,291.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,457,830.21 : 135,701,879.60 = 71,026,272.33 : x
  2. Step 2: Convert to fraction form
    90,457,830.21/135,701,879.60 = 71,026,272.33/x
  3. Step 3: Cross multiply
    90,457,830.21x = 135,701,879.60 × 71,026,272.33
  4. Step 4: Simplify right side
    90,457,830.21x = 9,638,398,656,162,470
  5. Step 5: Solve for x
    x = 9,638,398,656,162,470/90,457,830.21
  6. Step 6: Final answer
    x = 106,551,291.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.