Home / 128,523,575.49-192,791,563.38-42,260,072.37

Finding the Fourth Proportional to 128,523,575.49, 192,791,563.38 and 42,260,072.37

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Solution

The fourth proportional to 128,523,575.49, 192,791,563.38 and 42,260,072.37 is: 63,392,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,523,575.49 : 192,791,563.38 = 42,260,072.37 : x
  2. Step 2: Convert to fraction form
    128,523,575.49/192,791,563.38 = 42,260,072.37/x
  3. Step 3: Cross multiply
    128,523,575.49x = 192,791,563.38 × 42,260,072.37
  4. Step 4: Simplify right side
    128,523,575.49x = 8,147,385,420,764,241
  5. Step 5: Solve for x
    x = 8,147,385,420,764,241/128,523,575.49
  6. Step 6: Final answer
    x = 63,392,147.24

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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.