Finding the Fourth Proportional to 144,501,481.98, 199,412,149.14 and 78,421,963.14
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Solution
The fourth proportional to 144,501,481.98, 199,412,149.14 and 78,421,963.14 is: 108,222,365.58
Step by Step Solution
- Step 1: Write the proportion equation
144,501,481.98 : 199,412,149.14 = 78,421,963.14 : x - Step 2: Convert to fraction form
144,501,481.98/199,412,149.14 = 78,421,963.14/x - Step 3: Cross multiply
144,501,481.98x = 199,412,149.14 × 78,421,963.14 - Step 4: Simplify right side
144,501,481.98x = 15,638,292,209,525,262 - Step 5: Solve for x
x = 15,638,292,209,525,262/144,501,481.98 - Step 6: Final answer
x = 108,222,365.58
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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.