Finding the Fourth Proportional to 7,177,415,540.92, 9,904,420,196.68 and 4,005,350,500.12
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Solution
The fourth proportional to 7,177,415,540.92, 9,904,420,196.68 and 4,005,350,500.12 is: 5,527,153,076.48
Step by Step Solution
- Step 1: Write the proportion equation
7,177,415,540.92 : 9,904,420,196.68 = 4,005,350,500.12 : x - Step 2: Convert to fraction form
7,177,415,540.92/9,904,420,196.68 = 4,005,350,500.12/x - Step 3: Cross multiply
7,177,415,540.92x = 9,904,420,196.68 × 4,005,350,500.12 - Step 4: Simplify right side
7,177,415,540.92x = 39,670,674,388,170,866,688 - Step 5: Solve for x
x = 39,670,674,388,170,866,688/7,177,415,540.92 - Step 6: Final answer
x = 5,527,153,076.48
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1.5x scale
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.