Finding the Fourth Proportional to 5,316,965.37, 7,977,121.11 and 1,902,924.42
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Solution
The fourth proportional to 5,316,965.37, 7,977,121.11 and 1,902,924.42 is: 2,854,985.41
Step by Step Solution
- Step 1: Write the proportion equation
5,316,965.37 : 7,977,121.11 = 1,902,924.42 : x - Step 2: Convert to fraction form
5,316,965.37/7,977,121.11 = 1,902,924.42/x - Step 3: Cross multiply
5,316,965.37x = 7,977,121.11 × 1,902,924.42 - Step 4: Simplify right side
5,316,965.37x = 15,179,858,562,066.39 - Step 5: Solve for x
x = 15,179,858,562,066.39/5,316,965.37 - Step 6: Final answer
x = 2,854,985.41
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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.