Finding the Fourth Proportional to 13,682,272.95, 18,902,045.31 and 8,983,815.53
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Solution
The fourth proportional to 13,682,272.95, 18,902,045.31 and 8,983,815.53 is: 12,411,131.46
Step by Step Solution
- Step 1: Write the proportion equation
13,682,272.95 : 18,902,045.31 = 8,983,815.53 : x - Step 2: Convert to fraction form
13,682,272.95/18,902,045.31 = 8,983,815.53/x - Step 3: Cross multiply
13,682,272.95x = 18,902,045.31 × 8,983,815.53 - Step 4: Simplify right side
13,682,272.95x = 169,812,488,204,741.62 - Step 5: Solve for x
x = 169,812,488,204,741.62/13,682,272.95 - Step 6: Final answer
x = 12,411,131.46
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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.