Home / 505,113,637.44-691,994,103.81-486,228,814.08

Finding the Fourth Proportional to 505,113,637.44, 691,994,103.81 and 486,228,814.08

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Solution

The fourth proportional to 505,113,637.44, 691,994,103.81 and 486,228,814.08 is: 666,122,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,113,637.44 : 691,994,103.81 = 486,228,814.08 : x
  2. Step 2: Convert to fraction form
    505,113,637.44/691,994,103.81 = 486,228,814.08/x
  3. Step 3: Cross multiply
    505,113,637.44x = 691,994,103.81 × 486,228,814.08
  4. Step 4: Simplify right side
    505,113,637.44x = 336,467,472,445,888,640
  5. Step 5: Solve for x
    x = 336,467,472,445,888,640/505,113,637.44
  6. Step 6: Final answer
    x = 666,122,328.73

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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.