Finding the Fourth Proportional to 5,713,840.78, 7,885,327.60 and 3,135,613.82
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Solution
The fourth proportional to 5,713,840.78, 7,885,327.60 and 3,135,613.82 is: 4,327,271.82
Step by Step Solution
- Step 1: Write the proportion equation
5,713,840.78 : 7,885,327.60 = 3,135,613.82 : x - Step 2: Convert to fraction form
5,713,840.78/7,885,327.60 = 3,135,613.82/x - Step 3: Cross multiply
5,713,840.78x = 7,885,327.60 × 3,135,613.82 - Step 4: Simplify right side
5,713,840.78x = 24,725,342,197,787.43 - Step 5: Solve for x
x = 24,725,342,197,787.43/5,713,840.78 - Step 6: Final answer
x = 4,327,271.82
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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.