Home / 505,113,672.08-691,994,150.98-486,228,848.60

Finding the Fourth Proportional to 505,113,672.08, 691,994,150.98 and 486,228,848.60

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Solution

The fourth proportional to 505,113,672.08, 691,994,150.98 and 486,228,848.60 is: 666,122,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,113,672.08 : 691,994,150.98 = 486,228,848.60 : x
  2. Step 2: Convert to fraction form
    505,113,672.08/691,994,150.98 = 486,228,848.60/x
  3. Step 3: Cross multiply
    505,113,672.08x = 691,994,150.98 × 486,228,848.60
  4. Step 4: Simplify right side
    505,113,672.08x = 336,467,519,268,939,968
  5. Step 5: Solve for x
    x = 336,467,519,268,939,968/505,113,672.08
  6. Step 6: Final answer
    x = 666,122,375.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.