Home / 860,133,778.94-1,290,394,787.49-261,925,144.25

Finding the Fourth Proportional to 860,133,778.94, 1,290,394,787.49 and 261,925,144.25

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Solution

The fourth proportional to 860,133,778.94, 1,290,394,787.49 and 261,925,144.25 is: 392,946,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,133,778.94 : 1,290,394,787.49 = 261,925,144.25 : x
  2. Step 2: Convert to fraction form
    860,133,778.94/1,290,394,787.49 = 261,925,144.25/x
  3. Step 3: Cross multiply
    860,133,778.94x = 1,290,394,787.49 × 261,925,144.25
  4. Step 4: Simplify right side
    860,133,778.94x = 337,986,840,852,766,336
  5. Step 5: Solve for x
    x = 337,986,840,852,766,336/860,133,778.94
  6. Step 6: Final answer
    x = 392,946,828.89

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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.