Finding the Fourth Proportional to 12,291,137.31, 16,961,770.35 and 6,784,513.68
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Solution
The fourth proportional to 12,291,137.31, 16,961,770.35 and 6,784,513.68 is: 9,362,629.35
Step by Step Solution
- Step 1: Write the proportion equation
12,291,137.31 : 16,961,770.35 = 6,784,513.68 : x - Step 2: Convert to fraction form
12,291,137.31/16,961,770.35 = 6,784,513.68/x - Step 3: Cross multiply
12,291,137.31x = 16,961,770.35 × 6,784,513.68 - Step 4: Simplify right side
12,291,137.31x = 115,077,362,976,593.39 - Step 5: Solve for x
x = 115,077,362,976,593.39/12,291,137.31 - Step 6: Final answer
x = 9,362,629.35
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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.