Finding the Fourth Proportional to 398,103,674.70, 597,155,512.05 and 225,916,790.70
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Solution
The fourth proportional to 398,103,674.70, 597,155,512.05 and 225,916,790.70 is: 338,875,186.05
Step by Step Solution
- Step 1: Write the proportion equation
398,103,674.70 : 597,155,512.05 = 225,916,790.70 : x - Step 2: Convert to fraction form
398,103,674.70/597,155,512.05 = 225,916,790.70/x - Step 3: Cross multiply
398,103,674.70x = 597,155,512.05 × 225,916,790.70 - Step 4: Simplify right side
398,103,674.70x = 134,907,456,831,151,168 - Step 5: Solve for x
x = 134,907,456,831,151,168/398,103,674.70 - Step 6: Final answer
x = 338,875,186.05
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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.