Finding the Fourth Proportional to 8,091,912,223.20, 12,137,868,334.80 and 2,275,821,919.20
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Solution
The fourth proportional to 8,091,912,223.20, 12,137,868,334.80 and 2,275,821,919.20 is: 3,413,732,878.80
Step by Step Solution
- Step 1: Write the proportion equation
8,091,912,223.20 : 12,137,868,334.80 = 2,275,821,919.20 : x - Step 2: Convert to fraction form
8,091,912,223.20/12,137,868,334.80 = 2,275,821,919.20/x - Step 3: Cross multiply
8,091,912,223.20x = 12,137,868,334.80 × 2,275,821,919.20 - Step 4: Simplify right side
8,091,912,223.20x = 27,623,626,808,701,440,000 - Step 5: Solve for x
x = 27,623,626,808,701,440,000/8,091,912,223.20 - Step 6: Final answer
x = 3,413,732,878.80
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Double scale
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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.