Home / 787,081,027.20-1,181,337,978.24-418,925,063.04

Finding the Fourth Proportional to 787,081,027.20, 1,181,337,978.24 and 418,925,063.04

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Solution

The fourth proportional to 787,081,027.20, 1,181,337,978.24 and 418,925,063.04 is: 628,768,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,081,027.20 : 1,181,337,978.24 = 418,925,063.04 : x
  2. Step 2: Convert to fraction form
    787,081,027.20/1,181,337,978.24 = 418,925,063.04/x
  3. Step 3: Cross multiply
    787,081,027.20x = 1,181,337,978.24 × 418,925,063.04
  4. Step 4: Simplify right side
    787,081,027.20x = 494,892,087,005,738,176
  5. Step 5: Solve for x
    x = 494,892,087,005,738,176/787,081,027.20
  6. Step 6: Final answer
    x = 628,768,919.47

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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.