Finding the Fourth Proportional to 21,353,593.80, 32,023,772.18 and 7,704,975.12
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Solution
The fourth proportional to 21,353,593.80, 32,023,772.18 and 7,704,975.12 is: 11,555,074.53
Step by Step Solution
- Step 1: Write the proportion equation
21,353,593.80 : 32,023,772.18 = 7,704,975.12 : x - Step 2: Convert to fraction form
21,353,593.80/32,023,772.18 = 7,704,975.12/x - Step 3: Cross multiply
21,353,593.80x = 32,023,772.18 × 7,704,975.12 - Step 4: Simplify right side
21,353,593.80x = 246,742,367,895,448.16 - Step 5: Solve for x
x = 246,742,367,895,448.16/21,353,593.80 - Step 6: Final answer
x = 11,555,074.53
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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.