Finding the Fourth Proportional to 7,245,318.05, 9,998,560.74 and 3,982,467.14
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Solution
The fourth proportional to 7,245,318.05, 9,998,560.74 and 3,982,467.14 is: 5,495,816.65
Step by Step Solution
- Step 1: Write the proportion equation
7,245,318.05 : 9,998,560.74 = 3,982,467.14 : x - Step 2: Convert to fraction form
7,245,318.05/9,998,560.74 = 3,982,467.14/x - Step 3: Cross multiply
7,245,318.05x = 9,998,560.74 × 3,982,467.14 - Step 4: Simplify right side
7,245,318.05x = 39,818,939,594,344.09 - Step 5: Solve for x
x = 39,818,939,594,344.09/7,245,318.05 - Step 6: Final answer
x = 5,495,816.65
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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.