Home / 65,740,716.47-90,751,245.60-39,288,402.29

Finding the Fourth Proportional to 65,740,716.47, 90,751,245.60 and 39,288,402.29

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Solution

The fourth proportional to 65,740,716.47, 90,751,245.60 and 39,288,402.29 is: 54,235,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740,716.47 : 90,751,245.60 = 39,288,402.29 : x
  2. Step 2: Convert to fraction form
    65,740,716.47/90,751,245.60 = 39,288,402.29/x
  3. Step 3: Cross multiply
    65,740,716.47x = 90,751,245.60 × 39,288,402.29
  4. Step 4: Simplify right side
    65,740,716.47x = 3,565,471,444,997,635.50
  5. Step 5: Solve for x
    x = 3,565,471,444,997,635.50/65,740,716.47
  6. Step 6: Final answer
    x = 54,235,360.32

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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.