Home / 87,019,065.22-120,089,736.36-47,864,485.25

Finding the Fourth Proportional to 87,019,065.22, 120,089,736.36 and 47,864,485.25

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Solution

The fourth proportional to 87,019,065.22, 120,089,736.36 and 47,864,485.25 is: 66,054,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019,065.22 : 120,089,736.36 = 47,864,485.25 : x
  2. Step 2: Convert to fraction form
    87,019,065.22/120,089,736.36 = 47,864,485.25/x
  3. Step 3: Cross multiply
    87,019,065.22x = 120,089,736.36 × 47,864,485.25
  4. Step 4: Simplify right side
    87,019,065.22x = 5,748,033,414,326,424
  5. Step 5: Solve for x
    x = 5,748,033,414,326,424/87,019,065.22
  6. Step 6: Final answer
    x = 66,054,874.29

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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.