Finding the Fourth Proportional to 19,920,664.33, 27,489,790.96 and 11,099,659.84
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Solution
The fourth proportional to 19,920,664.33, 27,489,790.96 and 11,099,659.84 is: 15,317,126.16
Step by Step Solution
- Step 1: Write the proportion equation
19,920,664.33 : 27,489,790.96 = 11,099,659.84 : x - Step 2: Convert to fraction form
19,920,664.33/27,489,790.96 = 11,099,659.84/x - Step 3: Cross multiply
19,920,664.33x = 27,489,790.96 × 11,099,659.84 - Step 4: Simplify right side
19,920,664.33x = 305,127,328,632,233.44 - Step 5: Solve for x
x = 305,127,328,632,233.44/19,920,664.33 - Step 6: Final answer
x = 15,317,126.16
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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.