Home / 34,238,778.58-47,244,469.74-20,820,598.66

Finding the Fourth Proportional to 34,238,778.58, 47,244,469.74 and 20,820,598.66

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Solution

The fourth proportional to 34,238,778.58, 47,244,469.74 and 20,820,598.66 is: 28,729,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,238,778.58 : 47,244,469.74 = 20,820,598.66 : x
  2. Step 2: Convert to fraction form
    34,238,778.58/47,244,469.74 = 20,820,598.66/x
  3. Step 3: Cross multiply
    34,238,778.58x = 47,244,469.74 × 20,820,598.66
  4. Step 4: Simplify right side
    34,238,778.58x = 983,658,143,361,054.62
  5. Step 5: Solve for x
    x = 983,658,143,361,054.62/34,238,778.58
  6. Step 6: Final answer
    x = 28,729,358.47

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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.