Finding the Fourth Proportional to 208,722,226.96, 288,026,993.64 and 115,908,651.28
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Solution
The fourth proportional to 208,722,226.96, 288,026,993.64 and 115,908,651.28 is: 159,948,563.46
Step by Step Solution
- Step 1: Write the proportion equation
208,722,226.96 : 288,026,993.64 = 115,908,651.28 : x - Step 2: Convert to fraction form
208,722,226.96/288,026,993.64 = 115,908,651.28/x - Step 3: Cross multiply
208,722,226.96x = 288,026,993.64 × 115,908,651.28 - Step 4: Simplify right side
208,722,226.96x = 33,384,820,365,045,536 - Step 5: Solve for x
x = 33,384,820,365,045,536/208,722,226.96 - Step 6: Final answer
x = 159,948,563.46
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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.