Finding the Fourth Proportional to 54,516,752.10, 81,775,128.15 and 39,211,251.30
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Solution
The fourth proportional to 54,516,752.10, 81,775,128.15 and 39,211,251.30 is: 58,816,876.95
Step by Step Solution
- Step 1: Write the proportion equation
54,516,752.10 : 81,775,128.15 = 39,211,251.30 : x - Step 2: Convert to fraction form
54,516,752.10/81,775,128.15 = 39,211,251.30/x - Step 3: Cross multiply
54,516,752.10x = 81,775,128.15 × 39,211,251.30 - Step 4: Simplify right side
54,516,752.10x = 3,206,505,099,979,354 - Step 5: Solve for x
x = 3,206,505,099,979,354/54,516,752.10 - Step 6: Final answer
x = 58,816,876.95
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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.