Finding the Fourth Proportional to 144,292,390.48, 199,118,164.24 and 78,211,469.96
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Solution
The fourth proportional to 144,292,390.48, 199,118,164.24 and 78,211,469.96 is: 107,928,936.99
Step by Step Solution
- Step 1: Write the proportion equation
144,292,390.48 : 199,118,164.24 = 78,211,469.96 : x - Step 2: Convert to fraction form
144,292,390.48/199,118,164.24 = 78,211,469.96/x - Step 3: Cross multiply
144,292,390.48x = 199,118,164.24 × 78,211,469.96 - Step 4: Simplify right side
144,292,390.48x = 15,573,324,320,947,106 - Step 5: Solve for x
x = 15,573,324,320,947,106/144,292,390.48 - Step 6: Final answer
x = 107,928,936.99
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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.