Home / 489,890,550.81-734,942,232.82-178,997,667.30

Finding the Fourth Proportional to 489,890,550.81, 734,942,232.82 and 178,997,667.30

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Solution

The fourth proportional to 489,890,550.81, 734,942,232.82 and 178,997,667.30 is: 268,535,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,890,550.81 : 734,942,232.82 = 178,997,667.30 : x
  2. Step 2: Convert to fraction form
    489,890,550.81/734,942,232.82 = 178,997,667.30/x
  3. Step 3: Cross multiply
    489,890,550.81x = 734,942,232.82 × 178,997,667.30
  4. Step 4: Simplify right side
    489,890,550.81x = 131,552,945,275,257,248
  5. Step 5: Solve for x
    x = 131,552,945,275,257,248/489,890,550.81
  6. Step 6: Final answer
    x = 268,535,380.11

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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.