Finding the Fourth Proportional to 11,348,340.84, 15,660,687.42 and 6,191,699.40
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Solution
The fourth proportional to 11,348,340.84, 15,660,687.42 and 6,191,699.40 is: 8,544,532.66
Step by Step Solution
- Step 1: Write the proportion equation
11,348,340.84 : 15,660,687.42 = 6,191,699.40 : x - Step 2: Convert to fraction form
11,348,340.84/15,660,687.42 = 6,191,699.40/x - Step 3: Cross multiply
11,348,340.84x = 15,660,687.42 × 6,191,699.40 - Step 4: Simplify right side
11,348,340.84x = 96,966,268,902,001.55 - Step 5: Solve for x
x = 96,966,268,902,001.55/11,348,340.84 - Step 6: Final answer
x = 8,544,532.66
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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.