Finding the Fourth Proportional to 165,279,855.20, 247,919,782.80 and 155,202,159.20
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Solution
The fourth proportional to 165,279,855.20, 247,919,782.80 and 155,202,159.20 is: 232,803,238.80
Step by Step Solution
- Step 1: Write the proportion equation
165,279,855.20 : 247,919,782.80 = 155,202,159.20 : x - Step 2: Convert to fraction form
165,279,855.20/247,919,782.80 = 155,202,159.20/x - Step 3: Cross multiply
165,279,855.20x = 247,919,782.80 × 155,202,159.20 - Step 4: Simplify right side
165,279,855.20x = 38,477,685,598,955,024 - Step 5: Solve for x
x = 38,477,685,598,955,024/165,279,855.20 - Step 6: Final answer
x = 232,803,238.80
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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.