Finding the Fourth Proportional to 18,974,071.20, 28,489,451.04 and 18,690,636
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Solution
The fourth proportional to 18,974,071.20, 28,489,451.04 and 18,690,636 is: 28,063,874.83
Step by Step Solution
- Step 1: Write the proportion equation
18,974,071.20 : 28,489,451.04 = 18,690,636 : x - Step 2: Convert to fraction form
18,974,071.20/28,489,451.04 = 18,690,636/x - Step 3: Cross multiply
18,974,071.20x = 28,489,451.04 × 18,690,636 - Step 4: Simplify right side
18,974,071.20x = 532,485,959,228,461.44 - Step 5: Solve for x
x = 532,485,959,228,461.44/18,974,071.20 - Step 6: Final answer
x = 28,063,874.83
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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.