Finding the Fourth Proportional to 15,914,910.62, 21,962,576.64 and 8,671,566.62
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Solution
The fourth proportional to 15,914,910.62, 21,962,576.64 and 8,671,566.62 is: 11,966,761.92
Step by Step Solution
- Step 1: Write the proportion equation
15,914,910.62 : 21,962,576.64 = 8,671,566.62 : x - Step 2: Convert to fraction form
15,914,910.62/21,962,576.64 = 8,671,566.62/x - Step 3: Cross multiply
15,914,910.62x = 21,962,576.64 × 8,671,566.62 - Step 4: Simplify right side
15,914,910.62x = 190,449,946,370,802.88 - Step 5: Solve for x
x = 190,449,946,370,802.88/15,914,910.62 - Step 6: Final answer
x = 11,966,761.92
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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.