Finding the Fourth Proportional to 10,937,963.20, 16,406,944.80 and 7,746,692.80
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Solution
The fourth proportional to 10,937,963.20, 16,406,944.80 and 7,746,692.80 is: 11,620,039.20
Step by Step Solution
- Step 1: Write the proportion equation
10,937,963.20 : 16,406,944.80 = 7,746,692.80 : x - Step 2: Convert to fraction form
10,937,963.20/16,406,944.80 = 7,746,692.80/x - Step 3: Cross multiply
10,937,963.20x = 16,406,944.80 × 7,746,692.80 - Step 4: Simplify right side
10,937,963.20x = 127,099,561,152,157.44 - Step 5: Solve for x
x = 127,099,561,152,157.44/10,937,963.20 - Step 6: Final answer
x = 11,620,039.20
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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.