Finding the Fourth Proportional to 874,370,467.80, 1,311,555,701.70 and 228,138,211.80
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Solution
The fourth proportional to 874,370,467.80, 1,311,555,701.70 and 228,138,211.80 is: 342,207,317.70
Step by Step Solution
- Step 1: Write the proportion equation
874,370,467.80 : 1,311,555,701.70 = 228,138,211.80 : x - Step 2: Convert to fraction form
874,370,467.80/1,311,555,701.70 = 228,138,211.80/x - Step 3: Cross multiply
874,370,467.80x = 1,311,555,701.70 × 228,138,211.80 - Step 4: Simplify right side
874,370,467.80x = 299,215,972,461,932,224 - Step 5: Solve for x
x = 299,215,972,461,932,224/874,370,467.80 - Step 6: Final answer
x = 342,207,317.70
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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.