Finding the Fourth Proportional to 40,138,380.10, 55,392,487.18 and 22,497,608.70
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Solution
The fourth proportional to 40,138,380.10, 55,392,487.18 and 22,497,608.70 is: 31,047,553.45
Step by Step Solution
- Step 1: Write the proportion equation
40,138,380.10 : 55,392,487.18 = 22,497,608.70 : x - Step 2: Convert to fraction form
40,138,380.10/55,392,487.18 = 22,497,608.70/x - Step 3: Cross multiply
40,138,380.10x = 55,392,487.18 × 22,497,608.70 - Step 4: Simplify right side
40,138,380.10x = 1,246,198,501,439,162.50 - Step 5: Solve for x
x = 1,246,198,501,439,162.50/40,138,380.10 - Step 6: Final answer
x = 31,047,553.45
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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.