Finding the Fourth Proportional to 198,763,618.98, 298,281,617.12 and 69,371,229.07
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Solution
The fourth proportional to 198,763,618.98, 298,281,617.12 and 69,371,229.07 is: 104,104,375.31
Step by Step Solution
- Step 1: Write the proportion equation
198,763,618.98 : 298,281,617.12 = 69,371,229.07 : x - Step 2: Convert to fraction form
198,763,618.98/298,281,617.12 = 69,371,229.07/x - Step 3: Cross multiply
198,763,618.98x = 298,281,617.12 × 69,371,229.07 - Step 4: Simplify right side
198,763,618.98x = 20,692,162,387,508,992 - Step 5: Solve for x
x = 20,692,162,387,508,992/198,763,618.98 - Step 6: Final answer
x = 104,104,375.31
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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.