Finding the Fourth Proportional to 7,419,620,622.80, 11,129,430,934.20 and 2,512,294,428.80
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Solution
The fourth proportional to 7,419,620,622.80, 11,129,430,934.20 and 2,512,294,428.80 is: 3,768,441,643.20
Step by Step Solution
- Step 1: Write the proportion equation
7,419,620,622.80 : 11,129,430,934.20 = 2,512,294,428.80 : x - Step 2: Convert to fraction form
7,419,620,622.80/11,129,430,934.20 = 2,512,294,428.80/x - Step 3: Cross multiply
7,419,620,622.80x = 11,129,430,934.20 × 2,512,294,428.80 - Step 4: Simplify right side
7,419,620,622.80x = 27,960,407,331,705,044,992 - Step 5: Solve for x
x = 27,960,407,331,705,044,992/7,419,620,622.80 - Step 6: Final answer
x = 3,768,441,643.20
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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.