Finding the Fourth Proportional to 8,991,032.80, 13,486,549.20 and 5,211,896.80
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Solution
The fourth proportional to 8,991,032.80, 13,486,549.20 and 5,211,896.80 is: 7,817,845.20
Step by Step Solution
- Step 1: Write the proportion equation
8,991,032.80 : 13,486,549.20 = 5,211,896.80 : x - Step 2: Convert to fraction form
8,991,032.80/13,486,549.20 = 5,211,896.80/x - Step 3: Cross multiply
8,991,032.80x = 13,486,549.20 × 5,211,896.80 - Step 4: Simplify right side
8,991,032.80x = 70,290,502,618,522.55 - Step 5: Solve for x
x = 70,290,502,618,522.55/8,991,032.80 - Step 6: Final answer
x = 7,817,845.20
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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.