Finding the Fourth Proportional to 53,146,205.21, 79,719,308.84 and 12,756,689.21
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Solution
The fourth proportional to 53,146,205.21, 79,719,308.84 and 12,756,689.21 is: 19,135,034.06
Step by Step Solution
- Step 1: Write the proportion equation
53,146,205.21 : 79,719,308.84 = 12,756,689.21 : x - Step 2: Convert to fraction form
53,146,205.21/79,719,308.84 = 12,756,689.21/x - Step 3: Cross multiply
53,146,205.21x = 79,719,308.84 × 12,756,689.21 - Step 4: Simplify right side
53,146,205.21x = 1,016,954,447,023,480.62 - Step 5: Solve for x
x = 1,016,954,447,023,480.62/53,146,205.21 - Step 6: Final answer
x = 19,135,034.06
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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.