Finding the Fourth Proportional to 13,251,209.80, 19,866,317.10 and 7,267,577.80
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Solution
The fourth proportional to 13,251,209.80, 19,866,317.10 and 7,267,577.80 is: 10,895,609.33
Step by Step Solution
- Step 1: Write the proportion equation
13,251,209.80 : 19,866,317.10 = 7,267,577.80 : x - Step 2: Convert to fraction form
13,251,209.80/19,866,317.10 = 7,267,577.80/x - Step 3: Cross multiply
13,251,209.80x = 19,866,317.10 × 7,267,577.80 - Step 4: Simplify right side
13,251,209.80x = 144,380,005,123,720.38 - Step 5: Solve for x
x = 144,380,005,123,720.38/13,251,209.80 - Step 6: Final answer
x = 10,895,609.33
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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.