Finding the Fourth Proportional to 6,471,809,236.36, 8,928,555,621.60 and 3,758,615,174.80
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Solution
The fourth proportional to 6,471,809,236.36, 8,928,555,621.60 and 3,758,615,174.80 is: 5,185,413,139.17
Step by Step Solution
- Step 1: Write the proportion equation
6,471,809,236.36 : 8,928,555,621.60 = 3,758,615,174.80 : x - Step 2: Convert to fraction form
6,471,809,236.36/8,928,555,621.60 = 3,758,615,174.80/x - Step 3: Cross multiply
6,471,809,236.36x = 8,928,555,621.60 × 3,758,615,174.80 - Step 4: Simplify right side
6,471,809,236.36x = 33,559,004,648,391,610,368 - Step 5: Solve for x
x = 33,559,004,648,391,610,368/6,471,809,236.36 - Step 6: Final answer
x = 5,185,413,139.17
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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.