Finding the Fourth Proportional to 57,582,140.57, 79,463,359.97 and 31,476,764.78
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Solution
The fourth proportional to 57,582,140.57, 79,463,359.97 and 31,476,764.78 is: 43,437,938.66
Step by Step Solution
- Step 1: Write the proportion equation
57,582,140.57 : 79,463,359.97 = 31,476,764.78 : x - Step 2: Convert to fraction form
57,582,140.57/79,463,359.97 = 31,476,764.78/x - Step 3: Cross multiply
57,582,140.57x = 79,463,359.97 × 31,476,764.78 - Step 4: Simplify right side
57,582,140.57x = 2,501,249,489,849,457 - Step 5: Solve for x
x = 2,501,249,489,849,457/57,582,140.57 - Step 6: Final answer
x = 43,437,938.66
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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.