Home / 300,878,438.34-415,271,791.42-195,162,866.04

Finding the Fourth Proportional to 300,878,438.34, 415,271,791.42 and 195,162,866.04

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Solution

The fourth proportional to 300,878,438.34, 415,271,791.42 and 195,162,866.04 is: 269,363,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,878,438.34 : 415,271,791.42 = 195,162,866.04 : x
  2. Step 2: Convert to fraction form
    300,878,438.34/415,271,791.42 = 195,162,866.04/x
  3. Step 3: Cross multiply
    300,878,438.34x = 415,271,791.42 × 195,162,866.04
  4. Step 4: Simplify right side
    300,878,438.34x = 81,045,632,999,092,288
  5. Step 5: Solve for x
    x = 81,045,632,999,092,288/300,878,438.34
  6. Step 6: Final answer
    x = 269,363,379.60

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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.