Finding the Fourth Proportional to 151,466,614.97, 209,014,920.41 and 87,882,028.34
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Solution
The fourth proportional to 151,466,614.97, 209,014,920.41 and 87,882,028.34 is: 121,271,972.45
Step by Step Solution
- Step 1: Write the proportion equation
151,466,614.97 : 209,014,920.41 = 87,882,028.34 : x - Step 2: Convert to fraction form
151,466,614.97/209,014,920.41 = 87,882,028.34/x - Step 3: Cross multiply
151,466,614.97x = 209,014,920.41 × 87,882,028.34 - Step 4: Simplify right side
151,466,614.97x = 18,368,655,157,469,980 - Step 5: Solve for x
x = 18,368,655,157,469,980/151,466,614.97 - Step 6: Final answer
x = 121,271,972.45
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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.