Home / 780,882,617.37-1,077,637,839.36-428,458,514.73

Finding the Fourth Proportional to 780,882,617.37, 1,077,637,839.36 and 428,458,514.73

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Solution

The fourth proportional to 780,882,617.37, 1,077,637,839.36 and 428,458,514.73 is: 591,283,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,882,617.37 : 1,077,637,839.36 = 428,458,514.73 : x
  2. Step 2: Convert to fraction form
    780,882,617.37/1,077,637,839.36 = 428,458,514.73/x
  3. Step 3: Cross multiply
    780,882,617.37x = 1,077,637,839.36 × 428,458,514.73
  4. Step 4: Simplify right side
    780,882,617.37x = 461,723,108,063,362,624
  5. Step 5: Solve for x
    x = 461,723,108,063,362,624/780,882,617.37
  6. Step 6: Final answer
    x = 591,283,629.31

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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.