Finding the Fourth Proportional to 1,120,491,406.11, 1,546,409,291.49 and 931,987,129.08
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Solution
The fourth proportional to 1,120,491,406.11, 1,546,409,291.49 and 931,987,129.08 is: 1,286,251,325.18
Step by Step Solution
- Step 1: Write the proportion equation
1,120,491,406.11 : 1,546,409,291.49 = 931,987,129.08 : x - Step 2: Convert to fraction form
1,120,491,406.11/1,546,409,291.49 = 931,987,129.08/x - Step 3: Cross multiply
1,120,491,406.11x = 1,546,409,291.49 × 931,987,129.08 - Step 4: Simplify right side
1,120,491,406.11x = 1,441,233,555,958,402,048 - Step 5: Solve for x
x = 1,441,233,555,958,402,048/1,120,491,406.11 - Step 6: Final answer
x = 1,286,251,325.18
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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.