Home / 300,758,915.50-415,047,303.39-170,378,723.50

Finding the Fourth Proportional to 300,758,915.50, 415,047,303.39 and 170,378,723.50

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Solution

The fourth proportional to 300,758,915.50, 415,047,303.39 and 170,378,723.50 is: 235,122,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,758,915.50 : 415,047,303.39 = 170,378,723.50 : x
  2. Step 2: Convert to fraction form
    300,758,915.50/415,047,303.39 = 170,378,723.50/x
  3. Step 3: Cross multiply
    300,758,915.50x = 415,047,303.39 × 170,378,723.50
  4. Step 4: Simplify right side
    300,758,915.50x = 70,715,229,743,705,424
  5. Step 5: Solve for x
    x = 70,715,229,743,705,424/300,758,915.50
  6. Step 6: Final answer
    x = 235,122,638.43

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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.