Finding the Fourth Proportional to 19,920,672.84, 27,489,802.74 and 11,099,668.38
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Solution
The fourth proportional to 19,920,672.84, 27,489,802.74 and 11,099,668.38 is: 15,317,137.96
Step by Step Solution
- Step 1: Write the proportion equation
19,920,672.84 : 27,489,802.74 = 11,099,668.38 : x - Step 2: Convert to fraction form
19,920,672.84/27,489,802.74 = 11,099,668.38/x - Step 3: Cross multiply
19,920,672.84x = 27,489,802.74 × 11,099,668.38 - Step 4: Simplify right side
19,920,672.84x = 305,127,694,245,615.38 - Step 5: Solve for x
x = 305,127,694,245,615.38/19,920,672.84 - Step 6: Final answer
x = 15,317,137.96
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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.