Home / 591,223,521.49-815,504,023.12-379,194,511.56

Finding the Fourth Proportional to 591,223,521.49, 815,504,023.12 and 379,194,511.56

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Solution

The fourth proportional to 591,223,521.49, 815,504,023.12 and 379,194,511.56 is: 523,041,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,223,521.49 : 815,504,023.12 = 379,194,511.56 : x
  2. Step 2: Convert to fraction form
    591,223,521.49/815,504,023.12 = 379,194,511.56/x
  3. Step 3: Cross multiply
    591,223,521.49x = 815,504,023.12 × 379,194,511.56
  4. Step 4: Simplify right side
    591,223,521.49x = 309,234,649,724,352,512
  5. Step 5: Solve for x
    x = 309,234,649,724,352,512/591,223,521.49
  6. Step 6: Final answer
    x = 523,041,858.93

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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.