Finding the Fourth Proportional to 289,203,350.54, 399,099,178.35 and 157,043,170.17
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Solution
The fourth proportional to 289,203,350.54, 399,099,178.35 and 157,043,170.17 is: 216,718,789.96
Step by Step Solution
- Step 1: Write the proportion equation
289,203,350.54 : 399,099,178.35 = 157,043,170.17 : x - Step 2: Convert to fraction form
289,203,350.54/399,099,178.35 = 157,043,170.17/x - Step 3: Cross multiply
289,203,350.54x = 399,099,178.35 × 157,043,170.17 - Step 4: Simplify right side
289,203,350.54x = 62,675,800,180,326,232 - Step 5: Solve for x
x = 62,675,800,180,326,232/289,203,350.54 - Step 6: Final answer
x = 216,718,789.96
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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.