Finding the Fourth Proportional to 12,704,440.80, 17,531,820.36 and 7,122,317.44
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Solution
The fourth proportional to 12,704,440.80, 17,531,820.36 and 7,122,317.44 is: 9,828,625.43
Step by Step Solution
- Step 1: Write the proportion equation
12,704,440.80 : 17,531,820.36 = 7,122,317.44 : x - Step 2: Convert to fraction form
12,704,440.80/17,531,820.36 = 7,122,317.44/x - Step 3: Cross multiply
12,704,440.80x = 17,531,820.36 × 7,122,317.44 - Step 4: Simplify right side
12,704,440.80x = 124,867,189,904,975.08 - Step 5: Solve for x
x = 124,867,189,904,975.08/12,704,440.80 - Step 6: Final answer
x = 9,828,625.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.