Finding the Fourth Proportional to 398,608,857.80, 597,913,286.70 and 183,618,009.80
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Solution
The fourth proportional to 398,608,857.80, 597,913,286.70 and 183,618,009.80 is: 275,427,014.70
Step by Step Solution
- Step 1: Write the proportion equation
398,608,857.80 : 597,913,286.70 = 183,618,009.80 : x - Step 2: Convert to fraction form
398,608,857.80/597,913,286.70 = 183,618,009.80/x - Step 3: Cross multiply
398,608,857.80x = 597,913,286.70 × 183,618,009.80 - Step 4: Simplify right side
398,608,857.80x = 109,787,647,736,830,832 - Step 5: Solve for x
x = 109,787,647,736,830,832/398,608,857.80 - Step 6: Final answer
x = 275,427,014.70
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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.