Finding the Fourth Proportional to 221,153,314.80, 331,729,972.20 and 98,331,394.80
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Solution
The fourth proportional to 221,153,314.80, 331,729,972.20 and 98,331,394.80 is: 147,497,092.20
Step by Step Solution
- Step 1: Write the proportion equation
221,153,314.80 : 331,729,972.20 = 98,331,394.80 : x - Step 2: Convert to fraction form
221,153,314.80/331,729,972.20 = 98,331,394.80/x - Step 3: Cross multiply
221,153,314.80x = 331,729,972.20 × 98,331,394.80 - Step 4: Simplify right side
221,153,314.80x = 32,619,470,863,391,224 - Step 5: Solve for x
x = 32,619,470,863,391,224/221,153,314.80 - Step 6: Final answer
x = 147,497,092.20
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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.