Home / 289,747,443.20-434,621,164.80-269,340,108.80

Finding the Fourth Proportional to 289,747,443.20, 434,621,164.80 and 269,340,108.80

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Solution

The fourth proportional to 289,747,443.20, 434,621,164.80 and 269,340,108.80 is: 404,010,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,747,443.20 : 434,621,164.80 = 269,340,108.80 : x
  2. Step 2: Convert to fraction form
    289,747,443.20/434,621,164.80 = 269,340,108.80/x
  3. Step 3: Cross multiply
    289,747,443.20x = 434,621,164.80 × 269,340,108.80
  4. Step 4: Simplify right side
    289,747,443.20x = 117,060,911,814,014,736
  5. Step 5: Solve for x
    x = 117,060,911,814,014,736/289,747,443.20
  6. Step 6: Final answer
    x = 404,010,163.20

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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.