Finding the Fourth Proportional to 13,115,465.44, 18,093,165.14 and 8,530,113.76
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Solution
The fourth proportional to 13,115,465.44, 18,093,165.14 and 8,530,113.76 is: 11,767,539.45
Step by Step Solution
- Step 1: Write the proportion equation
13,115,465.44 : 18,093,165.14 = 8,530,113.76 : x - Step 2: Convert to fraction form
13,115,465.44/18,093,165.14 = 8,530,113.76/x - Step 3: Cross multiply
13,115,465.44x = 18,093,165.14 × 8,530,113.76 - Step 4: Simplify right side
13,115,465.44x = 154,336,756,922,666.31 - Step 5: Solve for x
x = 154,336,756,922,666.31/13,115,465.44 - Step 6: Final answer
x = 11,767,539.45
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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.