Finding the Fourth Proportional to 21,127,628.70, 31,695,991.98 and 6,554,252.88
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Solution
The fourth proportional to 21,127,628.70, 31,695,991.98 and 6,554,252.88 is: 9,832,790.50
Step by Step Solution
- Step 1: Write the proportion equation
21,127,628.70 : 31,695,991.98 = 6,554,252.88 : x - Step 2: Convert to fraction form
21,127,628.70/31,695,991.98 = 6,554,252.88/x - Step 3: Cross multiply
21,127,628.70x = 31,695,991.98 × 6,554,252.88 - Step 4: Simplify right side
21,127,628.70x = 207,743,546,719,371.91 - Step 5: Solve for x
x = 207,743,546,719,371.91/21,127,628.70 - Step 6: Final answer
x = 9,832,790.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.