Finding the Fourth Proportional to 18,968,692.84, 28,438,729.50 and 6,181,561.96
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Solution
The fourth proportional to 18,968,692.84, 28,438,729.50 and 6,181,561.96 is: 9,267,679.64
Step by Step Solution
- Step 1: Write the proportion equation
18,968,692.84 : 28,438,729.50 = 6,181,561.96 : x - Step 2: Convert to fraction form
18,968,692.84/28,438,729.50 = 6,181,561.96/x - Step 3: Cross multiply
18,968,692.84x = 28,438,729.50 × 6,181,561.96 - Step 4: Simplify right side
18,968,692.84x = 175,795,768,467,929.81 - Step 5: Solve for x
x = 175,795,768,467,929.81/18,968,692.84 - Step 6: Final answer
x = 9,267,679.64
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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.