Finding the Fourth Proportional to 1,197,536,653.20, 1,796,304,979.80 and 1,107,957,133.20
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Solution
The fourth proportional to 1,197,536,653.20, 1,796,304,979.80 and 1,107,957,133.20 is: 1,661,935,699.80
Step by Step Solution
- Step 1: Write the proportion equation
1,197,536,653.20 : 1,796,304,979.80 = 1,107,957,133.20 : x - Step 2: Convert to fraction form
1,197,536,653.20/1,796,304,979.80 = 1,107,957,133.20/x - Step 3: Cross multiply
1,197,536,653.20x = 1,796,304,979.80 × 1,107,957,133.20 - Step 4: Simplify right side
1,197,536,653.20x = 1,990,228,915,772,091,904 - Step 5: Solve for x
x = 1,990,228,915,772,091,904/1,197,536,653.20 - Step 6: Final answer
x = 1,661,935,699.80
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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.