Finding the Fourth Proportional to 19,920,650.67, 27,489,772.15 and 11,099,646.17
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Solution
The fourth proportional to 19,920,650.67, 27,489,772.15 and 11,099,646.17 is: 15,317,107.32
Step by Step Solution
- Step 1: Write the proportion equation
19,920,650.67 : 27,489,772.15 = 11,099,646.17 : x - Step 2: Convert to fraction form
19,920,650.67/27,489,772.15 = 11,099,646.17/x - Step 3: Cross multiply
19,920,650.67x = 27,489,772.15 × 11,099,646.17 - Step 4: Simplify right side
19,920,650.67x = 305,126,744,159,244.31 - Step 5: Solve for x
x = 305,126,744,159,244.31/19,920,650.67 - Step 6: Final answer
x = 15,317,107.32
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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.