Finding the Fourth Proportional to 805,102,402.40, 1,207,228,450.80 and 344,520,202.40
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Solution
The fourth proportional to 805,102,402.40, 1,207,228,450.80 and 344,520,202.40 is: 516,598,371.80
Step by Step Solution
- Step 1: Write the proportion equation
805,102,402.40 : 1,207,228,450.80 = 344,520,202.40 : x - Step 2: Convert to fraction form
805,102,402.40/1,207,228,450.80 = 344,520,202.40/x - Step 3: Cross multiply
805,102,402.40x = 1,207,228,450.80 × 344,520,202.40 - Step 4: Simplify right side
805,102,402.40x = 415,914,590,212,654,400 - Step 5: Solve for x
x = 415,914,590,212,654,400/805,102,402.40 - Step 6: Final answer
x = 516,598,371.80
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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.