Home / 12,303,161.66-16,978,878.88-7,076,171.30

Finding the Fourth Proportional to 12,303,161.66, 16,978,878.88 and 7,076,171.30

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Solution

The fourth proportional to 12,303,161.66, 16,978,878.88 and 7,076,171.30 is: 9,765,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,161.66 : 16,978,878.88 = 7,076,171.30 : x
  2. Step 2: Convert to fraction form
    12,303,161.66/16,978,878.88 = 7,076,171.30/x
  3. Step 3: Cross multiply
    12,303,161.66x = 16,978,878.88 × 7,076,171.30
  4. Step 4: Simplify right side
    12,303,161.66x = 120,145,455,436,832.14
  5. Step 5: Solve for x
    x = 120,145,455,436,832.14/12,303,161.66
  6. Step 6: Final answer
    x = 9,765,413.05

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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.