Finding the Fourth Proportional to 2,279,560.16, 3,160,178.98 and 2,158,215.68
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Solution
The fourth proportional to 2,279,560.16, 3,160,178.98 and 2,158,215.68 is: 2,991,957.81
Step by Step Solution
- Step 1: Write the proportion equation
2,279,560.16 : 3,160,178.98 = 2,158,215.68 : x - Step 2: Convert to fraction form
2,279,560.16/3,160,178.98 = 2,158,215.68/x - Step 3: Cross multiply
2,279,560.16x = 3,160,178.98 × 2,158,215.68 - Step 4: Simplify right side
2,279,560.16x = 6,820,347,826,242.41 - Step 5: Solve for x
x = 6,820,347,826,242.41/2,279,560.16 - Step 6: Final answer
x = 2,991,957.81
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.