Finding the Fourth Proportional to 5,631,612.75, 7,771,789.55 and 3,184,171.25
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Solution
The fourth proportional to 5,631,612.75, 7,771,789.55 and 3,184,171.25 is: 4,394,249.02
Step by Step Solution
- Step 1: Write the proportion equation
5,631,612.75 : 7,771,789.55 = 3,184,171.25 : x - Step 2: Convert to fraction form
5,631,612.75/7,771,789.55 = 3,184,171.25/x - Step 3: Cross multiply
5,631,612.75x = 7,771,789.55 × 3,184,171.25 - Step 4: Simplify right side
5,631,612.75x = 24,746,708,791,380.63 - Step 5: Solve for x
x = 24,746,708,791,380.63/5,631,612.75 - Step 6: Final answer
x = 4,394,249.02
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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.