Home / 258,787,042-356,834,984.52-211,596,882.64

Finding the Fourth Proportional to 258,787,042, 356,834,984.52 and 211,596,882.64

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Solution

The fourth proportional to 258,787,042, 356,834,984.52 and 211,596,882.64 is: 291,765,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,787,042 : 356,834,984.52 = 211,596,882.64 : x
  2. Step 2: Convert to fraction form
    258,787,042/356,834,984.52 = 211,596,882.64/x
  3. Step 3: Cross multiply
    258,787,042x = 356,834,984.52 × 211,596,882.64
  4. Step 4: Simplify right side
    258,787,042x = 75,505,170,341,324,640
  5. Step 5: Solve for x
    x = 75,505,170,341,324,640/258,787,042
  6. Step 6: Final answer
    x = 291,765,653.17

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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.