Finding the Fourth Proportional to 18,676,417.87, 28,019,184.99 and 7,161,679.45
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Solution
The fourth proportional to 18,676,417.87, 28,019,184.99 and 7,161,679.45 is: 10,744,267.06
Step by Step Solution
- Step 1: Write the proportion equation
18,676,417.87 : 28,019,184.99 = 7,161,679.45 : x - Step 2: Convert to fraction form
18,676,417.87/28,019,184.99 = 7,161,679.45/x - Step 3: Cross multiply
18,676,417.87x = 28,019,184.99 × 7,161,679.45 - Step 4: Simplify right side
18,676,417.87x = 200,664,421,348,631.44 - Step 5: Solve for x
x = 200,664,421,348,631.44/18,676,417.87 - Step 6: Final answer
x = 10,744,267.06
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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.