Finding the Fourth Proportional to 2,127,123.70, 3,190,685.55 and 1,455,277.30
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Solution
The fourth proportional to 2,127,123.70, 3,190,685.55 and 1,455,277.30 is: 2,182,915.95
Step by Step Solution
- Step 1: Write the proportion equation
2,127,123.70 : 3,190,685.55 = 1,455,277.30 : x - Step 2: Convert to fraction form
2,127,123.70/3,190,685.55 = 1,455,277.30/x - Step 3: Cross multiply
2,127,123.70x = 3,190,685.55 × 1,455,277.30 - Step 4: Simplify right side
2,127,123.70x = 4,643,332,252,353.01 - Step 5: Solve for x
x = 4,643,332,252,353.01/2,127,123.70 - Step 6: Final answer
x = 2,182,915.95
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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.