Finding the Fourth Proportional to 13,163,368.20, 19,721,432.70 and 11,273,800.20
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Solution
The fourth proportional to 13,163,368.20, 19,721,432.70 and 11,273,800.20 is: 16,890,471.23
Step by Step Solution
- Step 1: Write the proportion equation
13,163,368.20 : 19,721,432.70 = 11,273,800.20 : x - Step 2: Convert to fraction form
13,163,368.20/19,721,432.70 = 11,273,800.20/x - Step 3: Cross multiply
13,163,368.20x = 19,721,432.70 × 11,273,800.20 - Step 4: Simplify right side
13,163,368.20x = 222,335,491,917,546.53 - Step 5: Solve for x
x = 222,335,491,917,546.53/13,163,368.20 - Step 6: Final answer
x = 16,890,471.23
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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.