Finding the Fourth Proportional to 5,667,440.49, 7,821,070.11 and 3,220,054.74
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Solution
The fourth proportional to 5,667,440.49, 7,821,070.11 and 3,220,054.74 is: 4,443,676.81
Step by Step Solution
- Step 1: Write the proportion equation
5,667,440.49 : 7,821,070.11 = 3,220,054.74 : x - Step 2: Convert to fraction form
5,667,440.49/7,821,070.11 = 3,220,054.74/x - Step 3: Cross multiply
5,667,440.49x = 7,821,070.11 × 3,220,054.74 - Step 4: Simplify right side
5,667,440.49x = 25,184,273,879,577.82 - Step 5: Solve for x
x = 25,184,273,879,577.82/5,667,440.49 - Step 6: Final answer
x = 4,443,676.81
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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.