Finding the Fourth Proportional to 13,515,390.28, 18,651,090.06 and 7,320,283
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Solution
The fourth proportional to 13,515,390.28, 18,651,090.06 and 7,320,283 is: 10,101,910.09
Step by Step Solution
- Step 1: Write the proportion equation
13,515,390.28 : 18,651,090.06 = 7,320,283 : x - Step 2: Convert to fraction form
13,515,390.28/18,651,090.06 = 7,320,283/x - Step 3: Cross multiply
13,515,390.28x = 18,651,090.06 × 7,320,283 - Step 4: Simplify right side
13,515,390.28x = 136,531,257,497,686.97 - Step 5: Solve for x
x = 136,531,257,497,686.97/13,515,390.28 - Step 6: Final answer
x = 10,101,910.09
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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.