Finding the Fourth Proportional to 1,227,709,865.80, 1,694,990,416.98 and 798,955,706.44
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Solution
The fourth proportional to 1,227,709,865.80, 1,694,990,416.98 and 798,955,706.44 is: 1,103,047,473.78
Step by Step Solution
- Step 1: Write the proportion equation
1,227,709,865.80 : 1,694,990,416.98 = 798,955,706.44 : x - Step 2: Convert to fraction form
1,227,709,865.80/1,694,990,416.98 = 798,955,706.44/x - Step 3: Cross multiply
1,227,709,865.80x = 1,694,990,416.98 × 798,955,706.44 - Step 4: Simplify right side
1,227,709,865.80x = 1,354,222,266,007,286,272 - Step 5: Solve for x
x = 1,354,222,266,007,286,272/1,227,709,865.80 - Step 6: Final answer
x = 1,103,047,473.78
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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.