Finding the Fourth Proportional to 13,746,961.99, 20,638,464.47 and 9,218,275.05
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Solution
The fourth proportional to 13,746,961.99, 20,638,464.47 and 9,218,275.05 is: 13,839,497.21
Step by Step Solution
- Step 1: Write the proportion equation
13,746,961.99 : 20,638,464.47 = 9,218,275.05 : x - Step 2: Convert to fraction form
13,746,961.99/20,638,464.47 = 9,218,275.05/x - Step 3: Cross multiply
13,746,961.99x = 20,638,464.47 × 9,218,275.05 - Step 4: Simplify right side
13,746,961.99x = 190,251,042,159,983.88 - Step 5: Solve for x
x = 190,251,042,159,983.88/13,746,961.99 - Step 6: Final answer
x = 13,839,497.21
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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.