Finding the Fourth Proportional to 6,719,143.13, 10,078,751.75 and 1,670,453.63
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Solution
The fourth proportional to 6,719,143.13, 10,078,751.75 and 1,670,453.63 is: 2,505,689.65
Step by Step Solution
- Step 1: Write the proportion equation
6,719,143.13 : 10,078,751.75 = 1,670,453.63 : x - Step 2: Convert to fraction form
6,719,143.13/10,078,751.75 = 1,670,453.63/x - Step 3: Cross multiply
6,719,143.13x = 10,078,751.75 × 1,670,453.63 - Step 4: Simplify right side
6,719,143.13x = 16,836,087,387,910.32 - Step 5: Solve for x
x = 16,836,087,387,910.32/6,719,143.13 - Step 6: Final answer
x = 2,505,689.65
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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.