Finding the Fourth Proportional to 19,037,686.63, 26,296,651.68 and 15,743,287.84
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Solution
The fourth proportional to 19,037,686.63, 26,296,651.68 and 15,743,287.84 is: 21,746,116.77
Step by Step Solution
- Step 1: Write the proportion equation
19,037,686.63 : 26,296,651.68 = 15,743,287.84 : x - Step 2: Convert to fraction form
19,037,686.63/26,296,651.68 = 15,743,287.84/x - Step 3: Cross multiply
19,037,686.63x = 26,296,651.68 × 15,743,287.84 - Step 4: Simplify right side
19,037,686.63x = 413,995,756,501,680.62 - Step 5: Solve for x
x = 413,995,756,501,680.62/19,037,686.63 - Step 6: Final answer
x = 21,746,116.77
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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.