Home / 13,049,622.72-18,007,138.08-7,620,264

Finding the Fourth Proportional to 13,049,622.72, 18,007,138.08 and 7,620,264

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Solution

The fourth proportional to 13,049,622.72, 18,007,138.08 and 7,620,264 is: 10,515,181.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049,622.72 : 18,007,138.08 = 7,620,264 : x
  2. Step 2: Convert to fraction form
    13,049,622.72/18,007,138.08 = 7,620,264/x
  3. Step 3: Cross multiply
    13,049,622.72x = 18,007,138.08 × 7,620,264
  4. Step 4: Simplify right side
    13,049,622.72x = 137,219,146,054,053.11
  5. Step 5: Solve for x
    x = 137,219,146,054,053.11/13,049,622.72
  6. Step 6: Final answer
    x = 10,515,181.09

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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.