Finding the Fourth Proportional to 996,453,990.42, 1,375,148,282.76 and 573,067,982.18
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Solution
The fourth proportional to 996,453,990.42, 1,375,148,282.76 and 573,067,982.18 is: 790,857,841.08
Step by Step Solution
- Step 1: Write the proportion equation
996,453,990.42 : 1,375,148,282.76 = 573,067,982.18 : x - Step 2: Convert to fraction form
996,453,990.42/1,375,148,282.76 = 573,067,982.18/x - Step 3: Cross multiply
996,453,990.42x = 1,375,148,282.76 × 573,067,982.18 - Step 4: Simplify right side
996,453,990.42x = 788,053,451,599,565,184 - Step 5: Solve for x
x = 788,053,451,599,565,184/996,453,990.42 - Step 6: Final answer
x = 790,857,841.08
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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.