Home / 70,821,231.90-106,231,847.85-42,052,559.10

Finding the Fourth Proportional to 70,821,231.90, 106,231,847.85 and 42,052,559.10

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Solution

The fourth proportional to 70,821,231.90, 106,231,847.85 and 42,052,559.10 is: 63,078,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821,231.90 : 106,231,847.85 = 42,052,559.10 : x
  2. Step 2: Convert to fraction form
    70,821,231.90/106,231,847.85 = 42,052,559.10/x
  3. Step 3: Cross multiply
    70,821,231.90x = 106,231,847.85 × 42,052,559.10
  4. Step 4: Simplify right side
    70,821,231.90x = 4,467,321,060,014,333
  5. Step 5: Solve for x
    x = 4,467,321,060,014,333/70,821,231.90
  6. Step 6: Final answer
    x = 63,078,838.65

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Why These Related Problems?

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