Finding the Fourth Proportional to 21,121,414.08, 29,142,555.84 and 11,954,056.64
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Solution
The fourth proportional to 21,121,414.08, 29,142,555.84 and 11,954,056.64 is: 16,493,770.82
Step by Step Solution
- Step 1: Write the proportion equation
21,121,414.08 : 29,142,555.84 = 11,954,056.64 : x - Step 2: Convert to fraction form
21,121,414.08/29,142,555.84 = 11,954,056.64/x - Step 3: Cross multiply
21,121,414.08x = 29,142,555.84 × 11,954,056.64 - Step 4: Simplify right side
21,121,414.08x = 348,371,763,145,722.81 - Step 5: Solve for x
x = 348,371,763,145,722.81/21,121,414.08 - Step 6: Final answer
x = 16,493,770.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.