Home / 40,108,978-55,351,060.32-21,774,263.44

Finding the Fourth Proportional to 40,108,978, 55,351,060.32 and 21,774,263.44

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Solution

The fourth proportional to 40,108,978, 55,351,060.32 and 21,774,263.44 is: 30,048,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108,978 : 55,351,060.32 = 21,774,263.44 : x
  2. Step 2: Convert to fraction form
    40,108,978/55,351,060.32 = 21,774,263.44/x
  3. Step 3: Cross multiply
    40,108,978x = 55,351,060.32 × 21,774,263.44
  4. Step 4: Simplify right side
    40,108,978x = 1,205,228,569,091,010.75
  5. Step 5: Solve for x
    x = 1,205,228,569,091,010.75/40,108,978
  6. Step 6: Final answer
    x = 30,048,847.64

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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.