Home / 720,809,100,450.30-994,717,543,656.60-391,212,143,698.81

Finding the Fourth Proportional to 720,809,100,450.30, 994,717,543,656.60 and 391,212,143,698.81

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Solution

The fourth proportional to 720,809,100,450.30, 994,717,543,656.60 and 391,212,143,698.81 is: 539,873,292,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,809,100,450.30 : 994,717,543,656.60 = 391,212,143,698.81 : x
  2. Step 2: Convert to fraction form
    720,809,100,450.30/994,717,543,656.60 = 391,212,143,698.81/x
  3. Step 3: Cross multiply
    720,809,100,450.30x = 994,717,543,656.60 × 391,212,143,698.81
  4. Step 4: Simplify right side
    720,809,100,450.30x = 389,145,582,628,713,082,650,624
  5. Step 5: Solve for x
    x = 389,145,582,628,713,082,650,624/720,809,100,450.30
  6. Step 6: Final answer
    x = 539,873,292,922.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.