Finding the Fourth Proportional to 7,131,577.05, 9,843,332.49 and 4,378,924.08
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Solution
The fourth proportional to 7,131,577.05, 9,843,332.49 and 4,378,924.08 is: 6,043,993.55
Step by Step Solution
- Step 1: Write the proportion equation
7,131,577.05 : 9,843,332.49 = 4,378,924.08 : x - Step 2: Convert to fraction form
7,131,577.05/9,843,332.49 = 4,378,924.08/x - Step 3: Cross multiply
7,131,577.05x = 9,843,332.49 × 4,378,924.08 - Step 4: Simplify right side
7,131,577.05x = 43,103,205,667,907.36 - Step 5: Solve for x
x = 43,103,205,667,907.36/7,131,577.05 - Step 6: Final answer
x = 6,043,993.55
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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.