Finding the Fourth Proportional to 9,205,968.72, 12,709,679.94 and 8,184,546.75
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Solution
The fourth proportional to 9,205,968.72, 12,709,679.94 and 8,184,546.75 is: 11,299,513.70
Step by Step Solution
- Step 1: Write the proportion equation
9,205,968.72 : 12,709,679.94 = 8,184,546.75 : x - Step 2: Convert to fraction form
9,205,968.72/12,709,679.94 = 8,184,546.75/x - Step 3: Cross multiply
9,205,968.72x = 12,709,679.94 × 8,184,546.75 - Step 4: Simplify right side
9,205,968.72x = 104,022,969,646,467.19 - Step 5: Solve for x
x = 104,022,969,646,467.19/9,205,968.72 - Step 6: Final answer
x = 11,299,513.70
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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.