Home / 12,140,165.80-18,186,629.10-7,333,577.20

Finding the Fourth Proportional to 12,140,165.80, 18,186,629.10 and 7,333,577.20

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Solution

The fourth proportional to 12,140,165.80, 18,186,629.10 and 7,333,577.20 is: 10,986,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,165.80 : 18,186,629.10 = 7,333,577.20 : x
  2. Step 2: Convert to fraction form
    12,140,165.80/18,186,629.10 = 7,333,577.20/x
  3. Step 3: Cross multiply
    12,140,165.80x = 18,186,629.10 × 7,333,577.20
  4. Step 4: Simplify right side
    12,140,165.80x = 133,373,048,512,616.53
  5. Step 5: Solve for x
    x = 133,373,048,512,616.53/12,140,165.80
  6. Step 6: Final answer
    x = 10,986,097.78

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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.