Finding the Fourth Proportional to 398,603,422.80, 597,905,134.20 and 333,980,197.20
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Solution
The fourth proportional to 398,603,422.80, 597,905,134.20 and 333,980,197.20 is: 500,970,295.80
Step by Step Solution
- Step 1: Write the proportion equation
398,603,422.80 : 597,905,134.20 = 333,980,197.20 : x - Step 2: Convert to fraction form
398,603,422.80/597,905,134.20 = 333,980,197.20/x - Step 3: Cross multiply
398,603,422.80x = 597,905,134.20 × 333,980,197.20 - Step 4: Simplify right side
398,603,422.80x = 199,688,474,627,008,480 - Step 5: Solve for x
x = 199,688,474,627,008,480/398,603,422.80 - Step 6: Final answer
x = 500,970,295.80
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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.