Finding the Fourth Proportional to 13,150,641.96, 18,148,446.37 and 7,349,423.53
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Solution
The fourth proportional to 13,150,641.96, 18,148,446.37 and 7,349,423.53 is: 10,142,517.70
Step by Step Solution
- Step 1: Write the proportion equation
13,150,641.96 : 18,148,446.37 = 7,349,423.53 : x - Step 2: Convert to fraction form
13,150,641.96/18,148,446.37 = 7,349,423.53/x - Step 3: Cross multiply
13,150,641.96x = 18,148,446.37 × 7,349,423.53 - Step 4: Simplify right side
13,150,641.96x = 133,380,618,784,621.09 - Step 5: Solve for x
x = 133,380,618,784,621.09/13,150,641.96 - Step 6: Final answer
x = 10,142,517.70
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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.