Finding the Fourth Proportional to 8,438,132,366.87, 12,657,191,901.14 and 2,542,691,672.21
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Solution
The fourth proportional to 8,438,132,366.87, 12,657,191,901.14 and 2,542,691,672.21 is: 3,814,035,504.71
Step by Step Solution
- Step 1: Write the proportion equation
8,438,132,366.87 : 12,657,191,901.14 = 2,542,691,672.21 : x - Step 2: Convert to fraction form
8,438,132,366.87/12,657,191,901.14 = 2,542,691,672.21/x - Step 3: Cross multiply
8,438,132,366.87x = 12,657,191,901.14 × 2,542,691,672.21 - Step 4: Simplify right side
8,438,132,366.87x = 32,183,336,440,627,998,720 - Step 5: Solve for x
x = 32,183,336,440,627,998,720/8,438,132,366.87 - Step 6: Final answer
x = 3,814,035,504.71
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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.