Finding the Fourth Proportional to 11,589,139.80, 15,994,430.10 and 6,434,162.10
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Solution
The fourth proportional to 11,589,139.80, 15,994,430.10 and 6,434,162.10 is: 8,879,930.50
Step by Step Solution
- Step 1: Write the proportion equation
11,589,139.80 : 15,994,430.10 = 6,434,162.10 : x - Step 2: Convert to fraction form
11,589,139.80/15,994,430.10 = 6,434,162.10/x - Step 3: Cross multiply
11,589,139.80x = 15,994,430.10 × 6,434,162.10 - Step 4: Simplify right side
11,589,139.80x = 102,910,755,960,519.20 - Step 5: Solve for x
x = 102,910,755,960,519.20/11,589,139.80 - Step 6: Final answer
x = 8,879,930.50
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1.5x scale
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.