Finding the Fourth Proportional to 134,492,678.20, 201,739,017.30 and 80,073,119.80
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Solution
The fourth proportional to 134,492,678.20, 201,739,017.30 and 80,073,119.80 is: 120,109,679.70
Step by Step Solution
- Step 1: Write the proportion equation
134,492,678.20 : 201,739,017.30 = 80,073,119.80 : x - Step 2: Convert to fraction form
134,492,678.20/201,739,017.30 = 80,073,119.80/x - Step 3: Cross multiply
134,492,678.20x = 201,739,017.30 × 80,073,119.80 - Step 4: Simplify right side
134,492,678.20x = 16,153,872,500,597,172 - Step 5: Solve for x
x = 16,153,872,500,597,172/134,492,678.20 - Step 6: Final answer
x = 120,109,679.70
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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.