Finding the Fourth Proportional to 911,446,977.40, 1,367,207,790.90 and 265,214,721.40
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Solution
The fourth proportional to 911,446,977.40, 1,367,207,790.90 and 265,214,721.40 is: 397,832,942.95
Step by Step Solution
- Step 1: Write the proportion equation
911,446,977.40 : 1,367,207,790.90 = 265,214,721.40 : x - Step 2: Convert to fraction form
911,446,977.40/1,367,207,790.90 = 265,214,721.40/x - Step 3: Cross multiply
911,446,977.40x = 1,367,207,790.90 × 265,214,721.40 - Step 4: Simplify right side
911,446,977.40x = 362,603,633,359,452,992 - Step 5: Solve for x
x = 362,603,633,359,452,992/911,446,977.40 - Step 6: Final answer
x = 397,832,942.95
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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.