Finding the Fourth Proportional to 1,236,887,227.68, 1,706,892,247.74 and 672,338,519.93
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Solution
The fourth proportional to 1,236,887,227.68, 1,706,892,247.74 and 672,338,519.93 is: 927,820,565.89
Step by Step Solution
- Step 1: Write the proportion equation
1,236,887,227.68 : 1,706,892,247.74 = 672,338,519.93 : x - Step 2: Convert to fraction form
1,236,887,227.68/1,706,892,247.74 = 672,338,519.93/x - Step 3: Cross multiply
1,236,887,227.68x = 1,706,892,247.74 × 672,338,519.93 - Step 4: Simplify right side
1,236,887,227.68x = 1,147,609,407,532,324,608 - Step 5: Solve for x
x = 1,147,609,407,532,324,608/1,236,887,227.68 - Step 6: Final answer
x = 927,820,565.89
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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.