Finding the Fourth Proportional to 13,469,357.52, 18,588,121.20 and 7,358,179.68
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Solution
The fourth proportional to 13,469,357.52, 18,588,121.20 and 7,358,179.68 is: 10,154,510.75
Step by Step Solution
- Step 1: Write the proportion equation
13,469,357.52 : 18,588,121.20 = 7,358,179.68 : x - Step 2: Convert to fraction form
13,469,357.52/18,588,121.20 = 7,358,179.68/x - Step 3: Cross multiply
13,469,357.52x = 18,588,121.20 × 7,358,179.68 - Step 4: Simplify right side
13,469,357.52x = 136,774,735,703,217.20 - Step 5: Solve for x
x = 136,774,735,703,217.20/13,469,357.52 - Step 6: Final answer
x = 10,154,510.75
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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.