Finding the Fourth Proportional to 5,126,981,161.20, 7,690,471,741.80 and 3,403,695,145.20
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Solution
The fourth proportional to 5,126,981,161.20, 7,690,471,741.80 and 3,403,695,145.20 is: 5,105,542,717.80
Step by Step Solution
- Step 1: Write the proportion equation
5,126,981,161.20 : 7,690,471,741.80 = 3,403,695,145.20 : x - Step 2: Convert to fraction form
5,126,981,161.20/7,690,471,741.80 = 3,403,695,145.20/x - Step 3: Cross multiply
5,126,981,161.20x = 7,690,471,741.80 × 3,403,695,145.20 - Step 4: Simplify right side
5,126,981,161.20x = 26,176,021,331,862,446,080 - Step 5: Solve for x
x = 26,176,021,331,862,446,080/5,126,981,161.20 - Step 6: Final answer
x = 5,105,542,717.80
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1.5x scale
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.