Finding the Fourth Proportional to 13,465,914.69, 18,583,081.11 and 7,665,069.99
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Solution
The fourth proportional to 13,465,914.69, 18,583,081.11 and 7,665,069.99 is: 10,577,864.23
Step by Step Solution
- Step 1: Write the proportion equation
13,465,914.69 : 18,583,081.11 = 7,665,069.99 : x - Step 2: Convert to fraction form
13,465,914.69/18,583,081.11 = 7,665,069.99/x - Step 3: Cross multiply
13,465,914.69x = 18,583,081.11 × 7,665,069.99 - Step 4: Simplify right side
13,465,914.69x = 142,440,617,337,996.88 - Step 5: Solve for x
x = 142,440,617,337,996.88/13,465,914.69 - Step 6: Final answer
x = 10,577,864.23
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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.