Home / 12,303,122.53-16,978,824.94-7,076,132.15

Finding the Fourth Proportional to 12,303,122.53, 16,978,824.94 and 7,076,132.15

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Solution

The fourth proportional to 12,303,122.53, 16,978,824.94 and 7,076,132.15 is: 9,765,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,122.53 : 16,978,824.94 = 7,076,132.15 : x
  2. Step 2: Convert to fraction form
    12,303,122.53/16,978,824.94 = 7,076,132.15/x
  3. Step 3: Cross multiply
    12,303,122.53x = 16,978,824.94 × 7,076,132.15
  4. Step 4: Simplify right side
    12,303,122.53x = 120,144,408,965,693.97
  5. Step 5: Solve for x
    x = 120,144,408,965,693.97/12,303,122.53
  6. Step 6: Final answer
    x = 9,765,359.05

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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.