Home / 221,170,270-305,215,103.92-123,385,126

Finding the Fourth Proportional to 221,170,270, 305,215,103.92 and 123,385,126

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Solution

The fourth proportional to 221,170,270, 305,215,103.92 and 123,385,126 is: 170,271,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,170,270 : 305,215,103.92 = 123,385,126 : x
  2. Step 2: Convert to fraction form
    221,170,270/305,215,103.92 = 123,385,126/x
  3. Step 3: Cross multiply
    221,170,270x = 305,215,103.92 × 123,385,126
  4. Step 4: Simplify right side
    221,170,270x = 37,659,004,054,272,296
  5. Step 5: Solve for x
    x = 37,659,004,054,272,296/221,170,270
  6. Step 6: Final answer
    x = 170,271,547.14

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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.