Finding the Fourth Proportional to 13,712,402.02, 18,922,704.68 and 7,517,236.82
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Solution
The fourth proportional to 13,712,402.02, 18,922,704.68 and 7,517,236.82 is: 10,373,561.99
Step by Step Solution
- Step 1: Write the proportion equation
13,712,402.02 : 18,922,704.68 = 7,517,236.82 : x - Step 2: Convert to fraction form
13,712,402.02/18,922,704.68 = 7,517,236.82/x - Step 3: Cross multiply
13,712,402.02x = 18,922,704.68 × 7,517,236.82 - Step 4: Simplify right side
13,712,402.02x = 142,246,452,354,482.31 - Step 5: Solve for x
x = 142,246,452,354,482.31/13,712,402.02 - Step 6: Final answer
x = 10,373,561.99
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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.