Finding the Fourth Proportional to 13,149,010.40, 19,723,515.60 and 8,614,047.20
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Solution
The fourth proportional to 13,149,010.40, 19,723,515.60 and 8,614,047.20 is: 12,921,070.80
Step by Step Solution
- Step 1: Write the proportion equation
13,149,010.40 : 19,723,515.60 = 8,614,047.20 : x - Step 2: Convert to fraction form
13,149,010.40/19,723,515.60 = 8,614,047.20/x - Step 3: Cross multiply
13,149,010.40x = 19,723,515.60 × 8,614,047.20 - Step 4: Simplify right side
13,149,010.40x = 169,899,294,328,336.31 - Step 5: Solve for x
x = 169,899,294,328,336.31/13,149,010.40 - Step 6: Final answer
x = 12,921,070.80
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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.