Finding the Fourth Proportional to 7,965,142.05, 10,987,916.63 and 5,028,598.37
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Solution
The fourth proportional to 7,965,142.05, 10,987,916.63 and 5,028,598.37 is: 6,936,953.45
Step by Step Solution
- Step 1: Write the proportion equation
7,965,142.05 : 10,987,916.63 = 5,028,598.37 : x - Step 2: Convert to fraction form
7,965,142.05/10,987,916.63 = 5,028,598.37/x - Step 3: Cross multiply
7,965,142.05x = 10,987,916.63 × 5,028,598.37 - Step 4: Simplify right side
7,965,142.05x = 55,253,819,657,640.69 - Step 5: Solve for x
x = 55,253,819,657,640.69/7,965,142.05 - Step 6: Final answer
x = 6,936,953.45
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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.