Home / 393,584,257.44-543,143,089.44-217,384,330.50

Finding the Fourth Proportional to 393,584,257.44, 543,143,089.44 and 217,384,330.50

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Solution

The fourth proportional to 393,584,257.44, 543,143,089.44 and 217,384,330.50 is: 299,988,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,584,257.44 : 543,143,089.44 = 217,384,330.50 : x
  2. Step 2: Convert to fraction form
    393,584,257.44/543,143,089.44 = 217,384,330.50/x
  3. Step 3: Cross multiply
    393,584,257.44x = 543,143,089.44 × 217,384,330.50
  4. Step 4: Simplify right side
    393,584,257.44x = 118,070,796,863,616,032
  5. Step 5: Solve for x
    x = 118,070,796,863,616,032/393,584,257.44
  6. Step 6: Final answer
    x = 299,988,616.49

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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.