Finding the Fourth Proportional to 298,996,857.70, 448,012,396.95 and 169,218,528.10
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Solution
The fourth proportional to 298,996,857.70, 448,012,396.95 and 169,218,528.10 is: 253,554,498.75
Step by Step Solution
- Step 1: Write the proportion equation
298,996,857.70 : 448,012,396.95 = 169,218,528.10 : x - Step 2: Convert to fraction form
298,996,857.70/448,012,396.95 = 169,218,528.10/x - Step 3: Cross multiply
298,996,857.70x = 448,012,396.95 × 169,218,528.10 - Step 4: Simplify right side
298,996,857.70x = 75,811,998,382,431,920 - Step 5: Solve for x
x = 75,811,998,382,431,920/298,996,857.70 - Step 6: Final answer
x = 253,554,498.75
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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.