Finding the Fourth Proportional to 21,183,845.42, 31,775,768.14 and 6,037,383.26
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Solution
The fourth proportional to 21,183,845.42, 31,775,768.14 and 6,037,383.26 is: 9,056,074.89
Step by Step Solution
- Step 1: Write the proportion equation
21,183,845.42 : 31,775,768.14 = 6,037,383.26 : x - Step 2: Convert to fraction form
21,183,845.42/31,775,768.14 = 6,037,383.26/x - Step 3: Cross multiply
21,183,845.42x = 31,775,768.14 × 6,037,383.26 - Step 4: Simplify right side
21,183,845.42x = 191,842,490,642,077.34 - Step 5: Solve for x
x = 191,842,490,642,077.34/21,183,845.42 - Step 6: Final answer
x = 9,056,074.89
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.