Finding the Fourth Proportional to 18,485,436.02, 27,730,676.18 and 7,700,214.60
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Solution
The fourth proportional to 18,485,436.02, 27,730,676.18 and 7,700,214.60 is: 11,551,372.51
Step by Step Solution
- Step 1: Write the proportion equation
18,485,436.02 : 27,730,676.18 = 7,700,214.60 : x - Step 2: Convert to fraction form
18,485,436.02/27,730,676.18 = 7,700,214.60/x - Step 3: Cross multiply
18,485,436.02x = 27,730,676.18 × 7,700,214.60 - Step 4: Simplify right side
18,485,436.02x = 213,532,157,550,607.16 - Step 5: Solve for x
x = 213,532,157,550,607.16/18,485,436.02 - Step 6: Final answer
x = 11,551,372.51
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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.