Home / 12,303,159.66-16,978,876.12-7,076,169.30

Finding the Fourth Proportional to 12,303,159.66, 16,978,876.12 and 7,076,169.30

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Solution

The fourth proportional to 12,303,159.66, 16,978,876.12 and 7,076,169.30 is: 9,765,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,159.66 : 16,978,876.12 = 7,076,169.30 : x
  2. Step 2: Convert to fraction form
    12,303,159.66/16,978,876.12 = 7,076,169.30/x
  3. Step 3: Cross multiply
    12,303,159.66x = 16,978,876.12 × 7,076,169.30
  4. Step 4: Simplify right side
    12,303,159.66x = 120,145,401,948,847.12
  5. Step 5: Solve for x
    x = 120,145,401,948,847.12/12,303,159.66
  6. Step 6: Final answer
    x = 9,765,410.29

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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.