Finding the Fourth Proportional to 14,756,183.40, 20,363,569.14 and 8,230,235.58
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Solution
The fourth proportional to 14,756,183.40, 20,363,569.14 and 8,230,235.58 is: 11,357,745.21
Step by Step Solution
- Step 1: Write the proportion equation
14,756,183.40 : 20,363,569.14 = 8,230,235.58 : x - Step 2: Convert to fraction form
14,756,183.40/20,363,569.14 = 8,230,235.58/x - Step 3: Cross multiply
14,756,183.40x = 20,363,569.14 × 8,230,235.58 - Step 4: Simplify right side
14,756,183.40x = 167,596,971,271,818 - Step 5: Solve for x
x = 167,596,971,271,818/14,756,183.40 - Step 6: Final answer
x = 11,357,745.21
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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.