Finding the Fourth Proportional to 12,485,414.20, 18,729,368.70 and 3,387,656.20
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Solution
The fourth proportional to 12,485,414.20, 18,729,368.70 and 3,387,656.20 is: 5,081,822.76
Step by Step Solution
- Step 1: Write the proportion equation
12,485,414.20 : 18,729,368.70 = 3,387,656.20 : x - Step 2: Convert to fraction form
12,485,414.20/18,729,368.70 = 3,387,656.20/x - Step 3: Cross multiply
12,485,414.20x = 18,729,368.70 × 3,387,656.20 - Step 4: Simplify right side
12,485,414.20x = 63,448,661,998,640.94 - Step 5: Solve for x
x = 63,448,661,998,640.94/12,485,414.20 - Step 6: Final answer
x = 5,081,822.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.