Finding the Fourth Proportional to 2,129,119.40, 3,193,679.10 and 2,101,125.80
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Solution
The fourth proportional to 2,129,119.40, 3,193,679.10 and 2,101,125.80 is: 3,151,688.70
Step by Step Solution
- Step 1: Write the proportion equation
2,129,119.40 : 3,193,679.10 = 2,101,125.80 : x - Step 2: Convert to fraction form
2,129,119.40/3,193,679.10 = 2,101,125.80/x - Step 3: Cross multiply
2,129,119.40x = 3,193,679.10 × 2,101,125.80 - Step 4: Simplify right side
2,129,119.40x = 6,710,321,553,930.78 - Step 5: Solve for x
x = 6,710,321,553,930.78/2,129,119.40 - Step 6: Final answer
x = 3,151,688.70
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1.5x scale
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.