Finding the Fourth Proportional to 21,353,720.87, 32,081,680.67 and 13,692,376.10
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Solution
The fourth proportional to 21,353,720.87, 32,081,680.67 and 13,692,376.10 is: 20,571,329.95
Step by Step Solution
- Step 1: Write the proportion equation
21,353,720.87 : 32,081,680.67 = 13,692,376.10 : x - Step 2: Convert to fraction form
21,353,720.87/32,081,680.67 = 13,692,376.10/x - Step 3: Cross multiply
21,353,720.87x = 32,081,680.67 × 13,692,376.10 - Step 4: Simplify right side
21,353,720.87x = 439,274,437,665,482.25 - Step 5: Solve for x
x = 439,274,437,665,482.25/21,353,720.87 - Step 6: Final answer
x = 20,571,329.95
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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.