Finding the Fourth Proportional to 11,276,759.12, 15,561,921.36 and 6,381,892.32
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Solution
The fourth proportional to 11,276,759.12, 15,561,921.36 and 6,381,892.32 is: 8,807,007.88
Step by Step Solution
- Step 1: Write the proportion equation
11,276,759.12 : 15,561,921.36 = 6,381,892.32 : x - Step 2: Convert to fraction form
11,276,759.12/15,561,921.36 = 6,381,892.32/x - Step 3: Cross multiply
11,276,759.12x = 15,561,921.36 × 6,381,892.32 - Step 4: Simplify right side
11,276,759.12x = 99,314,506,411,827.95 - Step 5: Solve for x
x = 99,314,506,411,827.95/11,276,759.12 - Step 6: Final answer
x = 8,807,007.88
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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.