Home / 1,438,311,137.22-2,157,564,136.68-505,520,579.61

Finding the Fourth Proportional to 1,438,311,137.22, 2,157,564,136.68 and 505,520,579.61

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Solution

The fourth proportional to 1,438,311,137.22, 2,157,564,136.68 and 505,520,579.61 is: 758,315,113.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,311,137.22 : 2,157,564,136.68 = 505,520,579.61 : x
  2. Step 2: Convert to fraction form
    1,438,311,137.22/2,157,564,136.68 = 505,520,579.61/x
  3. Step 3: Cross multiply
    1,438,311,137.22x = 2,157,564,136.68 × 505,520,579.61
  4. Step 4: Simplify right side
    1,438,311,137.22x = 1,090,693,072,920,222,848
  5. Step 5: Solve for x
    x = 1,090,693,072,920,222,848/1,438,311,137.22
  6. Step 6: Final answer
    x = 758,315,113.26

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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.