Finding the Fourth Proportional to 293,957,380.16, 405,634,817.76 and 170,206,409.60
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Solution
The fourth proportional to 293,957,380.16, 405,634,817.76 and 170,206,409.60 is: 234,869,578.38
Step by Step Solution
- Step 1: Write the proportion equation
293,957,380.16 : 405,634,817.76 = 170,206,409.60 : x - Step 2: Convert to fraction form
293,957,380.16/405,634,817.76 = 170,206,409.60/x - Step 3: Cross multiply
293,957,380.16x = 405,634,817.76 × 170,206,409.60 - Step 4: Simplify right side
293,957,380.16x = 69,041,645,939,679,912 - Step 5: Solve for x
x = 69,041,645,939,679,912/293,957,380.16 - Step 6: Final answer
x = 234,869,578.38
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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.