Finding the Fourth Proportional to 13,388,372.24, 18,476,076.12 and 7,276,816.40
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Solution
The fourth proportional to 13,388,372.24, 18,476,076.12 and 7,276,816.40 is: 10,042,073.17
Step by Step Solution
- Step 1: Write the proportion equation
13,388,372.24 : 18,476,076.12 = 7,276,816.40 : x - Step 2: Convert to fraction form
13,388,372.24/18,476,076.12 = 7,276,816.40/x - Step 3: Cross multiply
13,388,372.24x = 18,476,076.12 × 7,276,816.40 - Step 4: Simplify right side
13,388,372.24x = 134,447,013,717,664.38 - Step 5: Solve for x
x = 134,447,013,717,664.38/13,388,372.24 - Step 6: Final answer
x = 10,042,073.17
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1.5x scale
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.