Home / 279,957,730.40-419,936,595.60-177,795,087.20

Finding the Fourth Proportional to 279,957,730.40, 419,936,595.60 and 177,795,087.20

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Solution

The fourth proportional to 279,957,730.40, 419,936,595.60 and 177,795,087.20 is: 266,692,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,957,730.40 : 419,936,595.60 = 177,795,087.20 : x
  2. Step 2: Convert to fraction form
    279,957,730.40/419,936,595.60 = 177,795,087.20/x
  3. Step 3: Cross multiply
    279,957,730.40x = 419,936,595.60 × 177,795,087.20
  4. Step 4: Simplify right side
    279,957,730.40x = 74,662,663,633,173,136
  5. Step 5: Solve for x
    x = 74,662,663,633,173,136/279,957,730.40
  6. Step 6: Final answer
    x = 266,692,630.80

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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.