Finding the Fourth Proportional to 7,880,794.80, 11,820,317.40 and 2,201,593.20
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Solution
The fourth proportional to 7,880,794.80, 11,820,317.40 and 2,201,593.20 is: 3,302,145.41
Step by Step Solution
- Step 1: Write the proportion equation
7,880,794.80 : 11,820,317.40 = 2,201,593.20 : x - Step 2: Convert to fraction form
7,880,794.80/11,820,317.40 = 2,201,593.20/x - Step 3: Cross multiply
7,880,794.80x = 11,820,317.40 × 2,201,593.20 - Step 4: Simplify right side
7,880,794.80x = 26,023,530,409,681.68 - Step 5: Solve for x
x = 26,023,530,409,681.68/7,880,794.80 - Step 6: Final answer
x = 3,302,145.41
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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.