Home / 212,412,415.55-318,618,623.33-155,016,787.55

Finding the Fourth Proportional to 212,412,415.55, 318,618,623.33 and 155,016,787.55

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Solution

The fourth proportional to 212,412,415.55, 318,618,623.33 and 155,016,787.55 is: 232,525,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,412,415.55 : 318,618,623.33 = 155,016,787.55 : x
  2. Step 2: Convert to fraction form
    212,412,415.55/318,618,623.33 = 155,016,787.55/x
  3. Step 3: Cross multiply
    212,412,415.55x = 318,618,623.33 × 155,016,787.55
  4. Step 4: Simplify right side
    212,412,415.55x = 49,391,235,441,445,000
  5. Step 5: Solve for x
    x = 49,391,235,441,445,000/212,412,415.55
  6. Step 6: Final answer
    x = 232,525,181.33

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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.