Home / 268,641,145.30-402,289,871.55-214,893,433.30

Finding the Fourth Proportional to 268,641,145.30, 402,289,871.55 and 214,893,433.30

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Solution

The fourth proportional to 268,641,145.30, 402,289,871.55 and 214,893,433.30 is: 321,802,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,641,145.30 : 402,289,871.55 = 214,893,433.30 : x
  2. Step 2: Convert to fraction form
    268,641,145.30/402,289,871.55 = 214,893,433.30/x
  3. Step 3: Cross multiply
    268,641,145.30x = 402,289,871.55 × 214,893,433.30
  4. Step 4: Simplify right side
    268,641,145.30x = 86,449,451,679,195,504
  5. Step 5: Solve for x
    x = 86,449,451,679,195,504/268,641,145.30
  6. Step 6: Final answer
    x = 321,802,721.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.