Home / 42,821,920.56-64,222,596.08-19,770,707.44

Finding the Fourth Proportional to 42,821,920.56, 64,222,596.08 and 19,770,707.44

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Solution

The fourth proportional to 42,821,920.56, 64,222,596.08 and 19,770,707.44 is: 29,651,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,821,920.56 : 64,222,596.08 = 19,770,707.44 : x
  2. Step 2: Convert to fraction form
    42,821,920.56/64,222,596.08 = 19,770,707.44/x
  3. Step 3: Cross multiply
    42,821,920.56x = 64,222,596.08 × 19,770,707.44
  4. Step 4: Simplify right side
    42,821,920.56x = 1,269,726,158,134,971
  5. Step 5: Solve for x
    x = 1,269,726,158,134,971/42,821,920.56
  6. Step 6: Final answer
    x = 29,651,312.73

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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.