Finding the Fourth Proportional to 5,446,420.94, 7,515,763.18 and 2,998,567.05
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Solution
The fourth proportional to 5,446,420.94, 7,515,763.18 and 2,998,567.05 is: 4,137,858.62
Step by Step Solution
- Step 1: Write the proportion equation
5,446,420.94 : 7,515,763.18 = 2,998,567.05 : x - Step 2: Convert to fraction form
5,446,420.94/7,515,763.18 = 2,998,567.05/x - Step 3: Cross multiply
5,446,420.94x = 7,515,763.18 × 2,998,567.05 - Step 4: Simplify right side
5,446,420.94x = 22,536,519,819,654.80 - Step 5: Solve for x
x = 22,536,519,819,654.80/5,446,420.94 - Step 6: Final answer
x = 4,137,858.62
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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.