Finding the Fourth Proportional to 320,801,975.76, 481,125,915.12 and 148,112,868.96
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Solution
The fourth proportional to 320,801,975.76, 481,125,915.12 and 148,112,868.96 is: 222,133,730.48
Step by Step Solution
- Step 1: Write the proportion equation
320,801,975.76 : 481,125,915.12 = 148,112,868.96 : x - Step 2: Convert to fraction form
320,801,975.76/481,125,915.12 = 148,112,868.96/x - Step 3: Cross multiply
320,801,975.76x = 481,125,915.12 × 148,112,868.96 - Step 4: Simplify right side
320,801,975.76x = 71,260,939,619,428,648 - Step 5: Solve for x
x = 71,260,939,619,428,648/320,801,975.76 - Step 6: Final answer
x = 222,133,730.48
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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.