Finding the Fourth Proportional to 479,919,218.40, 719,246,761.44 and 203,228,063.45
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Solution
The fourth proportional to 479,919,218.40, 719,246,761.44 and 203,228,063.45 is: 304,574,438.50
Step by Step Solution
- Step 1: Write the proportion equation
479,919,218.40 : 719,246,761.44 = 203,228,063.45 : x - Step 2: Convert to fraction form
479,919,218.40/719,246,761.44 = 203,228,063.45/x - Step 3: Cross multiply
479,919,218.40x = 719,246,761.44 × 203,228,063.45 - Step 4: Simplify right side
479,919,218.40x = 146,171,126,466,915,040 - Step 5: Solve for x
x = 146,171,126,466,915,040/479,919,218.40 - Step 6: Final answer
x = 304,574,438.50
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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.