Finding the Fourth Proportional to 11,369,634.72, 15,690,301.20 and 6,213,213.60
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Solution
The fourth proportional to 11,369,634.72, 15,690,301.20 and 6,213,213.60 is: 8,574,346.95
Step by Step Solution
- Step 1: Write the proportion equation
11,369,634.72 : 15,690,301.20 = 6,213,213.60 : x - Step 2: Convert to fraction form
11,369,634.72/15,690,301.20 = 6,213,213.60/x - Step 3: Cross multiply
11,369,634.72x = 15,690,301.20 × 6,213,213.60 - Step 4: Simplify right side
11,369,634.72x = 97,487,192,803,936.31 - Step 5: Solve for x
x = 97,487,192,803,936.31/11,369,634.72 - Step 6: Final answer
x = 8,574,346.95
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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.