Finding the Fourth Proportional to 12,480,135.75, 18,720,203.63 and 3,024,519.75
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Solution
The fourth proportional to 12,480,135.75, 18,720,203.63 and 3,024,519.75 is: 4,536,779.63
Step by Step Solution
- Step 1: Write the proportion equation
12,480,135.75 : 18,720,203.63 = 3,024,519.75 : x - Step 2: Convert to fraction form
12,480,135.75/18,720,203.63 = 3,024,519.75/x - Step 3: Cross multiply
12,480,135.75x = 18,720,203.63 × 3,024,519.75 - Step 4: Simplify right side
12,480,135.75x = 56,619,625,587,834.09 - Step 5: Solve for x
x = 56,619,625,587,834.09/12,480,135.75 - Step 6: Final answer
x = 4,536,779.63
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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.