Finding the Fourth Proportional to 6,921,361.36, 10,376,421.30 and 2,880,873.64
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Solution
The fourth proportional to 6,921,361.36, 10,376,421.30 and 2,880,873.64 is: 4,318,970.94
Step by Step Solution
- Step 1: Write the proportion equation
6,921,361.36 : 10,376,421.30 = 2,880,873.64 : x - Step 2: Convert to fraction form
6,921,361.36/10,376,421.30 = 2,880,873.64/x - Step 3: Cross multiply
6,921,361.36x = 10,376,421.30 × 2,880,873.64 - Step 4: Simplify right side
6,921,361.36x = 29,893,158,600,704.54 - Step 5: Solve for x
x = 29,893,158,600,704.54/6,921,361.36 - Step 6: Final answer
x = 4,318,970.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.