Finding the Fourth Proportional to 874,368,201.40, 1,311,552,302.10 and 228,135,945.40
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Solution
The fourth proportional to 874,368,201.40, 1,311,552,302.10 and 228,135,945.40 is: 342,203,918.10
Step by Step Solution
- Step 1: Write the proportion equation
874,368,201.40 : 1,311,552,302.10 = 228,135,945.40 : x - Step 2: Convert to fraction form
874,368,201.40/1,311,552,302.10 = 228,135,945.40/x - Step 3: Cross multiply
874,368,201.40x = 1,311,552,302.10 × 228,135,945.40 - Step 4: Simplify right side
874,368,201.40x = 299,212,224,381,129,920 - Step 5: Solve for x
x = 299,212,224,381,129,920/874,368,201.40 - Step 6: Final answer
x = 342,203,918.10
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Similar ratio
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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.