Finding the Fourth Proportional to 7,091,712,194.80, 10,637,568,292.20 and 6,994,966,313.20
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Solution
The fourth proportional to 7,091,712,194.80, 10,637,568,292.20 and 6,994,966,313.20 is: 10,492,449,469.80
Step by Step Solution
- Step 1: Write the proportion equation
7,091,712,194.80 : 10,637,568,292.20 = 6,994,966,313.20 : x - Step 2: Convert to fraction form
7,091,712,194.80/10,637,568,292.20 = 6,994,966,313.20/x - Step 3: Cross multiply
7,091,712,194.80x = 10,637,568,292.20 × 6,994,966,313.20 - Step 4: Simplify right side
7,091,712,194.80x = 74,409,431,858,303,451,136 - Step 5: Solve for x
x = 74,409,431,858,303,451,136/7,091,712,194.80 - Step 6: Final answer
x = 10,492,449,469.80
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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.