Home / 355,052,667.21-489,930,246.36-196,261,340.04

Finding the Fourth Proportional to 355,052,667.21, 489,930,246.36 and 196,261,340.04

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Solution

The fourth proportional to 355,052,667.21, 489,930,246.36 and 196,261,340.04 is: 270,817,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,052,667.21 : 489,930,246.36 = 196,261,340.04 : x
  2. Step 2: Convert to fraction form
    355,052,667.21/489,930,246.36 = 196,261,340.04/x
  3. Step 3: Cross multiply
    355,052,667.21x = 489,930,246.36 × 196,261,340.04
  4. Step 4: Simplify right side
    355,052,667.21x = 96,154,366,676,740,928
  5. Step 5: Solve for x
    x = 96,154,366,676,740,928/355,052,667.21
  6. Step 6: Final answer
    x = 270,817,192.93

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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.