Home / 769,823,998.20-1,154,735,997.30-278,536,318.20

Finding the Fourth Proportional to 769,823,998.20, 1,154,735,997.30 and 278,536,318.20

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Solution

The fourth proportional to 769,823,998.20, 1,154,735,997.30 and 278,536,318.20 is: 417,804,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,823,998.20 : 1,154,735,997.30 = 278,536,318.20 : x
  2. Step 2: Convert to fraction form
    769,823,998.20/1,154,735,997.30 = 278,536,318.20/x
  3. Step 3: Cross multiply
    769,823,998.20x = 1,154,735,997.30 × 278,536,318.20
  4. Step 4: Simplify right side
    769,823,998.20x = 321,635,913,180,947,136
  5. Step 5: Solve for x
    x = 321,635,913,180,947,136/769,823,998.20
  6. Step 6: Final answer
    x = 417,804,477.30

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1.5x scale

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.