Finding the Fourth Proportional to 13,548,817.19, 18,697,645.56 and 7,668,451.28
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Solution
The fourth proportional to 13,548,817.19, 18,697,645.56 and 7,668,451.28 is: 10,582,620.02
Step by Step Solution
- Step 1: Write the proportion equation
13,548,817.19 : 18,697,645.56 = 7,668,451.28 : x - Step 2: Convert to fraction form
13,548,817.19/18,697,645.56 = 7,668,451.28/x - Step 3: Cross multiply
13,548,817.19x = 18,697,645.56 × 7,668,451.28 - Step 4: Simplify right side
13,548,817.19x = 143,381,984,103,069.09 - Step 5: Solve for x
x = 143,381,984,103,069.09/13,548,817.19 - Step 6: Final answer
x = 10,582,620.02
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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.