Finding the Fourth Proportional to 5,185,126.36, 7,154,406.09 and 2,979,563.17
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Solution
The fourth proportional to 5,185,126.36, 7,154,406.09 and 2,979,563.17 is: 4,111,183.30
Step by Step Solution
- Step 1: Write the proportion equation
5,185,126.36 : 7,154,406.09 = 2,979,563.17 : x - Step 2: Convert to fraction form
5,185,126.36/7,154,406.09 = 2,979,563.17/x - Step 3: Cross multiply
5,185,126.36x = 7,154,406.09 × 2,979,563.17 - Step 4: Simplify right side
5,185,126.36x = 21,317,004,888,987.70 - Step 5: Solve for x
x = 21,317,004,888,987.70/5,185,126.36 - Step 6: Final answer
x = 4,111,183.30
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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.