Finding the Fourth Proportional to 398,989,369.22, 550,302,331.08 and 343,328,066.24
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Solution
The fourth proportional to 398,989,369.22, 550,302,331.08 and 343,328,066.24 is: 473,532,002.99
Step by Step Solution
- Step 1: Write the proportion equation
398,989,369.22 : 550,302,331.08 = 343,328,066.24 : x - Step 2: Convert to fraction form
398,989,369.22/550,302,331.08 = 343,328,066.24/x - Step 3: Cross multiply
398,989,369.22x = 550,302,331.08 × 343,328,066.24 - Step 4: Simplify right side
398,989,369.22x = 188,934,235,177,060,672 - Step 5: Solve for x
x = 188,934,235,177,060,672/398,989,369.22 - Step 6: Final answer
x = 473,532,002.99
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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.