Finding the Fourth Proportional to 5,438,938.05, 8,159,336.54 and 2,242,316.79
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Solution
The fourth proportional to 5,438,938.05, 8,159,336.54 and 2,242,316.79 is: 3,363,858.37
Step by Step Solution
- Step 1: Write the proportion equation
5,438,938.05 : 8,159,336.54 = 2,242,316.79 : x - Step 2: Convert to fraction form
5,438,938.05/8,159,336.54 = 2,242,316.79/x - Step 3: Cross multiply
5,438,938.05x = 8,159,336.54 × 2,242,316.79 - Step 4: Simplify right side
5,438,938.05x = 18,295,817,307,690.92 - Step 5: Solve for x
x = 18,295,817,307,690.92/5,438,938.05 - Step 6: Final answer
x = 3,363,858.37
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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.