Finding the Fourth Proportional to 830,086,473.12, 1,145,543,694.12 and 453,763,857.84
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Solution
The fourth proportional to 830,086,473.12, 1,145,543,694.12 and 453,763,857.84 is: 626,207,440.79
Step by Step Solution
- Step 1: Write the proportion equation
830,086,473.12 : 1,145,543,694.12 = 453,763,857.84 : x - Step 2: Convert to fraction form
830,086,473.12/1,145,543,694.12 = 453,763,857.84/x - Step 3: Cross multiply
830,086,473.12x = 1,145,543,694.12 × 453,763,857.84 - Step 4: Simplify right side
830,086,473.12x = 519,806,325,968,176,064 - Step 5: Solve for x
x = 519,806,325,968,176,064/830,086,473.12 - Step 6: Final answer
x = 626,207,440.79
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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.