Finding the Fourth Proportional to 7,768,390.80, 11,652,586.20 and 4,941,037.20
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Solution
The fourth proportional to 7,768,390.80, 11,652,586.20 and 4,941,037.20 is: 7,411,555.80
Step by Step Solution
- Step 1: Write the proportion equation
7,768,390.80 : 11,652,586.20 = 4,941,037.20 : x - Step 2: Convert to fraction form
7,768,390.80/11,652,586.20 = 4,941,037.20/x - Step 3: Cross multiply
7,768,390.80x = 11,652,586.20 × 4,941,037.20 - Step 4: Simplify right side
7,768,390.80x = 57,575,861,890,406.64 - Step 5: Solve for x
x = 57,575,861,890,406.64/7,768,390.80 - Step 6: Final answer
x = 7,411,555.80
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1.5x scale
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.