Finding the Fourth Proportional to 19,690,616.58, 29,539,074.16 and 8,331,163.62
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Solution
The fourth proportional to 19,690,616.58, 29,539,074.16 and 8,331,163.62 is: 12,498,077.90
Step by Step Solution
- Step 1: Write the proportion equation
19,690,616.58 : 29,539,074.16 = 8,331,163.62 : x - Step 2: Convert to fraction form
19,690,616.58/29,539,074.16 = 8,331,163.62/x - Step 3: Cross multiply
19,690,616.58x = 29,539,074.16 × 8,331,163.62 - Step 4: Simplify right side
19,690,616.58x = 246,094,860,010,274.06 - Step 5: Solve for x
x = 246,094,860,010,274.06/19,690,616.58 - Step 6: Final answer
x = 12,498,077.90
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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.