Home / 375,641,863.73-518,308,145.25-216,869,235.37

Finding the Fourth Proportional to 375,641,863.73, 518,308,145.25 and 216,869,235.37

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Solution

The fourth proportional to 375,641,863.73, 518,308,145.25 and 216,869,235.37 is: 299,234,728.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,641,863.73 : 518,308,145.25 = 216,869,235.37 : x
  2. Step 2: Convert to fraction form
    375,641,863.73/518,308,145.25 = 216,869,235.37/x
  3. Step 3: Cross multiply
    375,641,863.73x = 518,308,145.25 × 216,869,235.37
  4. Step 4: Simplify right side
    375,641,863.73x = 112,405,091,146,410,400
  5. Step 5: Solve for x
    x = 112,405,091,146,410,400/375,641,863.73
  6. Step 6: Final answer
    x = 299,234,728.61

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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.