Finding the Fourth Proportional to 756,975,927.80, 1,135,463,891.70 and 739,969,815.80
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Solution
The fourth proportional to 756,975,927.80, 1,135,463,891.70 and 739,969,815.80 is: 1,109,954,723.70
Step by Step Solution
- Step 1: Write the proportion equation
756,975,927.80 : 1,135,463,891.70 = 739,969,815.80 : x - Step 2: Convert to fraction form
756,975,927.80/1,135,463,891.70 = 739,969,815.80/x - Step 3: Cross multiply
756,975,927.80x = 1,135,463,891.70 × 739,969,815.80 - Step 4: Simplify right side
756,975,927.80x = 840,209,006,788,800,128 - Step 5: Solve for x
x = 840,209,006,788,800,128/756,975,927.80 - Step 6: Final answer
x = 1,109,954,723.70
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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.