Finding the Fourth Proportional to 11,227,657.28, 15,490,361.12 and 9,159,096.96
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Solution
The fourth proportional to 11,227,657.28, 15,490,361.12 and 9,159,096.96 is: 12,636,449.07
Step by Step Solution
- Step 1: Write the proportion equation
11,227,657.28 : 15,490,361.12 = 9,159,096.96 : x - Step 2: Convert to fraction form
11,227,657.28/15,490,361.12 = 9,159,096.96/x - Step 3: Cross multiply
11,227,657.28x = 15,490,361.12 × 9,159,096.96 - Step 4: Simplify right side
11,227,657.28x = 141,877,719,443,494.19 - Step 5: Solve for x
x = 141,877,719,443,494.19/11,227,657.28 - Step 6: Final answer
x = 12,636,449.07
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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.