Finding the Fourth Proportional to 53,146,206.21, 79,719,310.34 and 12,756,690.21
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Solution
The fourth proportional to 53,146,206.21, 79,719,310.34 and 12,756,690.21 is: 19,135,035.56
Step by Step Solution
- Step 1: Write the proportion equation
53,146,206.21 : 79,719,310.34 = 12,756,690.21 : x - Step 2: Convert to fraction form
53,146,206.21/79,719,310.34 = 12,756,690.21/x - Step 3: Cross multiply
53,146,206.21x = 79,719,310.34 × 12,756,690.21 - Step 4: Simplify right side
53,146,206.21x = 1,016,954,545,762,229.88 - Step 5: Solve for x
x = 1,016,954,545,762,229.88/53,146,206.21 - Step 6: Final answer
x = 19,135,035.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.