Finding the Fourth Proportional to 13,708,236.11, 18,925,967.27 and 8,821,949.99
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Solution
The fourth proportional to 13,708,236.11, 18,925,967.27 and 8,821,949.99 is: 12,179,826.45
Step by Step Solution
- Step 1: Write the proportion equation
13,708,236.11 : 18,925,967.27 = 8,821,949.99 : x - Step 2: Convert to fraction form
13,708,236.11/18,925,967.27 = 8,821,949.99/x - Step 3: Cross multiply
13,708,236.11x = 18,925,967.27 × 8,821,949.99 - Step 4: Simplify right side
13,708,236.11x = 166,963,936,768,316.81 - Step 5: Solve for x
x = 166,963,936,768,316.81/13,708,236.11 - Step 6: Final answer
x = 12,179,826.45
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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.