Finding the Fourth Proportional to 220,109,024.80, 330,163,537.20 and 198,945,863.20
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Solution
The fourth proportional to 220,109,024.80, 330,163,537.20 and 198,945,863.20 is: 298,418,794.80
Step by Step Solution
- Step 1: Write the proportion equation
220,109,024.80 : 330,163,537.20 = 198,945,863.20 : x - Step 2: Convert to fraction form
220,109,024.80/330,163,537.20 = 198,945,863.20/x - Step 3: Cross multiply
220,109,024.80x = 330,163,537.20 × 198,945,863.20 - Step 4: Simplify right side
220,109,024.80x = 65,684,669,905,419,304 - Step 5: Solve for x
x = 65,684,669,905,419,304/220,109,024.80 - Step 6: Final answer
x = 298,418,794.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.