Finding the Fourth Proportional to 12,236,459.87, 18,338,155.58 and 4,659,292.19
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Solution
The fourth proportional to 12,236,459.87, 18,338,155.58 and 4,659,292.19 is: 6,982,642.53
Step by Step Solution
- Step 1: Write the proportion equation
12,236,459.87 : 18,338,155.58 = 4,659,292.19 : x - Step 2: Convert to fraction form
12,236,459.87/18,338,155.58 = 4,659,292.19/x - Step 3: Cross multiply
12,236,459.87x = 18,338,155.58 × 4,659,292.19 - Step 4: Simplify right side
12,236,459.87x = 85,442,825,130,392.53 - Step 5: Solve for x
x = 85,442,825,130,392.53/12,236,459.87 - Step 6: Final answer
x = 6,982,642.53
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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.