Finding the Fourth Proportional to 309,114,701.80, 463,672,052.70 and 165,787,469.80
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Solution
The fourth proportional to 309,114,701.80, 463,672,052.70 and 165,787,469.80 is: 248,681,204.70
Step by Step Solution
- Step 1: Write the proportion equation
309,114,701.80 : 463,672,052.70 = 165,787,469.80 : x - Step 2: Convert to fraction form
309,114,701.80/463,672,052.70 = 165,787,469.80/x - Step 3: Cross multiply
309,114,701.80x = 463,672,052.70 × 165,787,469.80 - Step 4: Simplify right side
309,114,701.80x = 76,871,016,434,105,264 - Step 5: Solve for x
x = 76,871,016,434,105,264/309,114,701.80 - Step 6: Final answer
x = 248,681,204.70
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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.