Finding the Fourth Proportional to 79,745,406.80, 119,618,110.20 and 43,465,701.20
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Solution
The fourth proportional to 79,745,406.80, 119,618,110.20 and 43,465,701.20 is: 65,198,551.80
Step by Step Solution
- Step 1: Write the proportion equation
79,745,406.80 : 119,618,110.20 = 43,465,701.20 : x - Step 2: Convert to fraction form
79,745,406.80/119,618,110.20 = 43,465,701.20/x - Step 3: Cross multiply
79,745,406.80x = 119,618,110.20 × 43,465,701.20 - Step 4: Simplify right side
79,745,406.80x = 5,199,285,036,061,873 - Step 5: Solve for x
x = 5,199,285,036,061,873/79,745,406.80 - Step 6: Final answer
x = 65,198,551.80
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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.