Home / 217,686,175.20-305,621,579.70-217,686,175.20

Finding the Fourth Proportional to 217,686,175.20, 305,621,579.70 and 217,686,175.20

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Solution

The fourth proportional to 217,686,175.20, 305,621,579.70 and 217,686,175.20 is: 305,621,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,686,175.20 : 305,621,579.70 = 217,686,175.20 : x
  2. Step 2: Convert to fraction form
    217,686,175.20/305,621,579.70 = 217,686,175.20/x
  3. Step 3: Cross multiply
    217,686,175.20x = 305,621,579.70 × 217,686,175.20
  4. Step 4: Simplify right side
    217,686,175.20x = 66,529,592,743,474,960
  5. Step 5: Solve for x
    x = 66,529,592,743,474,960/217,686,175.20
  6. Step 6: Final answer
    x = 305,621,579.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.