Finding the Fourth Proportional to 18,134,082.20, 27,201,123.30 and 14,024,271.80
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Solution
The fourth proportional to 18,134,082.20, 27,201,123.30 and 14,024,271.80 is: 21,036,407.70
Step by Step Solution
- Step 1: Write the proportion equation
18,134,082.20 : 27,201,123.30 = 14,024,271.80 : x - Step 2: Convert to fraction form
18,134,082.20/27,201,123.30 = 14,024,271.80/x - Step 3: Cross multiply
18,134,082.20x = 27,201,123.30 × 14,024,271.80 - Step 4: Simplify right side
18,134,082.20x = 381,475,946,424,513 - Step 5: Solve for x
x = 381,475,946,424,513/18,134,082.20 - Step 6: Final answer
x = 21,036,407.70
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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.