Finding the Fourth Proportional to 75,470,891.10, 113,206,336.65 and 51,284,420.70
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Solution
The fourth proportional to 75,470,891.10, 113,206,336.65 and 51,284,420.70 is: 76,926,631.05
Step by Step Solution
- Step 1: Write the proportion equation
75,470,891.10 : 113,206,336.65 = 51,284,420.70 : x - Step 2: Convert to fraction form
75,470,891.10/113,206,336.65 = 51,284,420.70/x - Step 3: Cross multiply
75,470,891.10x = 113,206,336.65 × 51,284,420.70 - Step 4: Simplify right side
75,470,891.10x = 5,805,721,394,664,429 - Step 5: Solve for x
x = 5,805,721,394,664,429/75,470,891.10 - Step 6: Final answer
x = 76,926,631.05
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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.