Finding the Fourth Proportional to 177,705,972.80, 266,558,959.20 and 155,031,156.80
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Solution
The fourth proportional to 177,705,972.80, 266,558,959.20 and 155,031,156.80 is: 232,546,735.20
Step by Step Solution
- Step 1: Write the proportion equation
177,705,972.80 : 266,558,959.20 = 155,031,156.80 : x - Step 2: Convert to fraction form
177,705,972.80/266,558,959.20 = 155,031,156.80/x - Step 3: Cross multiply
177,705,972.80x = 266,558,959.20 × 155,031,156.80 - Step 4: Simplify right side
177,705,972.80x = 41,324,943,800,180,000 - Step 5: Solve for x
x = 41,324,943,800,180,000/177,705,972.80 - Step 6: Final answer
x = 232,546,735.20
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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.