Home / 21,794,783.80-30,076,801.86-12,005,197.78

Finding the Fourth Proportional to 21,794,783.80, 30,076,801.86 and 12,005,197.78

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Solution

The fourth proportional to 21,794,783.80, 30,076,801.86 and 12,005,197.78 is: 16,567,173.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794,783.80 : 30,076,801.86 = 12,005,197.78 : x
  2. Step 2: Convert to fraction form
    21,794,783.80/30,076,801.86 = 12,005,197.78/x
  3. Step 3: Cross multiply
    21,794,783.80x = 30,076,801.86 × 12,005,197.78
  4. Step 4: Simplify right side
    21,794,783.80x = 361,077,954,919,171.81
  5. Step 5: Solve for x
    x = 361,077,954,919,171.81/21,794,783.80
  6. Step 6: Final answer
    x = 16,567,173.06

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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.