Finding the Fourth Proportional to 2,136,022.17, 2,947,738.28 and 1,169,131.70
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Solution
The fourth proportional to 2,136,022.17, 2,947,738.28 and 1,169,131.70 is: 1,613,416.89
Step by Step Solution
- Step 1: Write the proportion equation
2,136,022.17 : 2,947,738.28 = 1,169,131.70 : x - Step 2: Convert to fraction form
2,136,022.17/2,947,738.28 = 1,169,131.70/x - Step 3: Cross multiply
2,136,022.17x = 2,947,738.28 × 1,169,131.70 - Step 4: Simplify right side
2,136,022.17x = 3,446,294,245,867.13 - Step 5: Solve for x
x = 3,446,294,245,867.13/2,136,022.17 - Step 6: Final answer
x = 1,613,416.89
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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.