Finding the Fourth Proportional to 37,986,118.35, 52,420,889.64 and 20,582,449.84
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Solution
The fourth proportional to 37,986,118.35, 52,420,889.64 and 20,582,449.84 is: 28,403,805.88
Step by Step Solution
- Step 1: Write the proportion equation
37,986,118.35 : 52,420,889.64 = 20,582,449.84 : x - Step 2: Convert to fraction form
37,986,118.35/52,420,889.64 = 20,582,449.84/x - Step 3: Cross multiply
37,986,118.35x = 52,420,889.64 × 20,582,449.84 - Step 4: Simplify right side
37,986,118.35x = 1,078,950,331,583,475.62 - Step 5: Solve for x
x = 1,078,950,331,583,475.62/37,986,118.35 - Step 6: Final answer
x = 28,403,805.88
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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.