Finding the Fourth Proportional to 5,702,712.81, 7,869,743.51 and 3,124,491.21
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Solution
The fourth proportional to 5,702,712.81, 7,869,743.51 and 3,124,491.21 is: 4,311,797.78
Step by Step Solution
- Step 1: Write the proportion equation
5,702,712.81 : 7,869,743.51 = 3,124,491.21 : x - Step 2: Convert to fraction form
5,702,712.81/7,869,743.51 = 3,124,491.21/x - Step 3: Cross multiply
5,702,712.81x = 7,869,743.51 × 3,124,491.21 - Step 4: Simplify right side
5,702,712.81x = 24,588,944,406,327.09 - Step 5: Solve for x
x = 24,588,944,406,327.09/5,702,712.81 - Step 6: Final answer
x = 4,311,797.78
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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.