Home / 315,212,218,361.38-434,993,280,825.33-170,696,597,287.35

Finding the Fourth Proportional to 315,212,218,361.38, 434,993,280,825.33 and 170,696,597,287.35

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Solution

The fourth proportional to 315,212,218,361.38, 434,993,280,825.33 and 170,696,597,287.35 is: 235,561,531,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,212,218,361.38 : 434,993,280,825.33 = 170,696,597,287.35 : x
  2. Step 2: Convert to fraction form
    315,212,218,361.38/434,993,280,825.33 = 170,696,597,287.35/x
  3. Step 3: Cross multiply
    315,212,218,361.38x = 434,993,280,825.33 × 170,696,597,287.35
  4. Step 4: Simplify right side
    315,212,218,361.38x = 74,251,872,879,744,510,853,120
  5. Step 5: Solve for x
    x = 74,251,872,879,744,510,853,120/315,212,218,361.38
  6. Step 6: Final answer
    x = 235,561,531,420.77

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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.