Home / 20,792,920.78-31,190,266.50-6,415,670.26

Finding the Fourth Proportional to 20,792,920.78, 31,190,266.50 and 6,415,670.26

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Solution

The fourth proportional to 20,792,920.78, 31,190,266.50 and 6,415,670.26 is: 9,623,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792,920.78 : 31,190,266.50 = 6,415,670.26 : x
  2. Step 2: Convert to fraction form
    20,792,920.78/31,190,266.50 = 6,415,670.26/x
  3. Step 3: Cross multiply
    20,792,920.78x = 31,190,266.50 × 6,415,670.26
  4. Step 4: Simplify right side
    20,792,920.78x = 200,106,465,185,524.28
  5. Step 5: Solve for x
    x = 200,106,465,185,524.28/20,792,920.78
  6. Step 6: Final answer
    x = 9,623,778.56

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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.