Finding the Fourth Proportional to 165,279,857.70, 247,919,786.55 and 155,202,161.70
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Solution
The fourth proportional to 165,279,857.70, 247,919,786.55 and 155,202,161.70 is: 232,803,242.55
Step by Step Solution
- Step 1: Write the proportion equation
165,279,857.70 : 247,919,786.55 = 155,202,161.70 : x - Step 2: Convert to fraction form
165,279,857.70/247,919,786.55 = 155,202,161.70/x - Step 3: Cross multiply
165,279,857.70x = 247,919,786.55 × 155,202,161.70 - Step 4: Simplify right side
165,279,857.70x = 38,477,686,800,762,584 - Step 5: Solve for x
x = 38,477,686,800,762,584/165,279,857.70 - Step 6: Final answer
x = 232,803,242.55
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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.