Finding the Fourth Proportional to 5,196,312,229.80, 7,794,468,344.70 and 1,318,918,693.80
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Solution
The fourth proportional to 5,196,312,229.80, 7,794,468,344.70 and 1,318,918,693.80 is: 1,978,378,040.70
Step by Step Solution
- Step 1: Write the proportion equation
5,196,312,229.80 : 7,794,468,344.70 = 1,318,918,693.80 : x - Step 2: Convert to fraction form
5,196,312,229.80/7,794,468,344.70 = 1,318,918,693.80/x - Step 3: Cross multiply
5,196,312,229.80x = 7,794,468,344.70 × 1,318,918,693.80 - Step 4: Simplify right side
5,196,312,229.80x = 10,280,270,008,057,171,968 - Step 5: Solve for x
x = 10,280,270,008,057,171,968/5,196,312,229.80 - Step 6: Final answer
x = 1,978,378,040.70
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1.5x scale
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.