Finding the Fourth Proportional to 129,674,241.02, 178,949,917.58 and 70,135,603.61
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Solution
The fourth proportional to 129,674,241.02, 178,949,917.58 and 70,135,603.61 is: 96,786,843.60
Step by Step Solution
- Step 1: Write the proportion equation
129,674,241.02 : 178,949,917.58 = 70,135,603.61 : x - Step 2: Convert to fraction form
129,674,241.02/178,949,917.58 = 70,135,603.61/x - Step 3: Cross multiply
129,674,241.02x = 178,949,917.58 × 70,135,603.61 - Step 4: Simplify right side
129,674,241.02x = 12,550,760,484,187,622 - Step 5: Solve for x
x = 12,550,760,484,187,622/129,674,241.02 - Step 6: Final answer
x = 96,786,843.60
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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.