Finding the Fourth Proportional to 19,945,261.60, 29,919,447.60 and 8,586,080.80
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Solution
The fourth proportional to 19,945,261.60, 29,919,447.60 and 8,586,080.80 is: 12,879,790.69
Step by Step Solution
- Step 1: Write the proportion equation
19,945,261.60 : 29,919,447.60 = 8,586,080.80 : x - Step 2: Convert to fraction form
19,945,261.60/29,919,447.60 = 8,586,080.80/x - Step 3: Cross multiply
19,945,261.60x = 29,919,447.60 × 8,586,080.80 - Step 4: Simplify right side
19,945,261.60x = 256,890,794,584,966.12 - Step 5: Solve for x
x = 256,890,794,584,966.12/19,945,261.60 - Step 6: Final answer
x = 12,879,790.69
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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.