Finding the Fourth Proportional to 124,467,905.40, 186,701,858.10 and 81,469,735.80
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Solution
The fourth proportional to 124,467,905.40, 186,701,858.10 and 81,469,735.80 is: 122,204,603.70
Step by Step Solution
- Step 1: Write the proportion equation
124,467,905.40 : 186,701,858.10 = 81,469,735.80 : x - Step 2: Convert to fraction form
124,467,905.40/186,701,858.10 = 81,469,735.80/x - Step 3: Cross multiply
124,467,905.40x = 186,701,858.10 × 81,469,735.80 - Step 4: Simplify right side
124,467,905.40x = 15,210,551,052,776,088 - Step 5: Solve for x
x = 15,210,551,052,776,088/124,467,905.40 - Step 6: Final answer
x = 122,204,603.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.