Finding the Fourth Proportional to 37,986,140.61, 52,420,920.36 and 20,582,472.09
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Solution
The fourth proportional to 37,986,140.61, 52,420,920.36 and 20,582,472.09 is: 28,403,836.58
Step by Step Solution
- Step 1: Write the proportion equation
37,986,140.61 : 52,420,920.36 = 20,582,472.09 : x - Step 2: Convert to fraction form
37,986,140.61/52,420,920.36 = 20,582,472.09/x - Step 3: Cross multiply
37,986,140.61x = 52,420,920.36 × 20,582,472.09 - Step 4: Simplify right side
37,986,140.61x = 1,078,952,130,241,812.75 - Step 5: Solve for x
x = 1,078,952,130,241,812.75/37,986,140.61 - Step 6: Final answer
x = 28,403,836.58
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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.