Home / 38,458,446,647.66-53,072,967,990.07-21,311,586,344.49

Finding the Fourth Proportional to 38,458,446,647.66, 53,072,967,990.07 and 21,311,586,344.49

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Solution

The fourth proportional to 38,458,446,647.66, 53,072,967,990.07 and 21,311,586,344.49 is: 29,410,161,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458,446,647.66 : 53,072,967,990.07 = 21,311,586,344.49 : x
  2. Step 2: Convert to fraction form
    38,458,446,647.66/53,072,967,990.07 = 21,311,586,344.49/x
  3. Step 3: Cross multiply
    38,458,446,647.66x = 53,072,967,990.07 × 21,311,586,344.49
  4. Step 4: Simplify right side
    38,458,446,647.66x = 1,131,069,139,878,561,054,720
  5. Step 5: Solve for x
    x = 1,131,069,139,878,561,054,720/38,458,446,647.66
  6. Step 6: Final answer
    x = 29,410,161,836.25

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Double scale
Find fourth proportional to 38,458,446,648.66, 53,072,967,991.45 and 21,311,586,345.49
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1.5x scale

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.