Finding the Fourth Proportional to 818,494,006.68, 1,129,519,992.06 and 447,218,700.12
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Solution
The fourth proportional to 818,494,006.68, 1,129,519,992.06 and 447,218,700.12 is: 617,160,857.00
Step by Step Solution
- Step 1: Write the proportion equation
818,494,006.68 : 1,129,519,992.06 = 447,218,700.12 : x - Step 2: Convert to fraction form
818,494,006.68/1,129,519,992.06 = 447,218,700.12/x - Step 3: Cross multiply
818,494,006.68x = 1,129,519,992.06 × 447,218,700.12 - Step 4: Simplify right side
818,494,006.68x = 505,142,462,608,625,920 - Step 5: Solve for x
x = 505,142,462,608,625,920/818,494,006.68 - Step 6: Final answer
x = 617,160,857.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.