Finding the Fourth Proportional to 153,467,999.70, 230,201,999.55 and 133,760,505.30
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Solution
The fourth proportional to 153,467,999.70, 230,201,999.55 and 133,760,505.30 is: 200,640,757.95
Step by Step Solution
- Step 1: Write the proportion equation
153,467,999.70 : 230,201,999.55 = 133,760,505.30 : x - Step 2: Convert to fraction form
153,467,999.70/230,201,999.55 = 133,760,505.30/x - Step 3: Cross multiply
153,467,999.70x = 230,201,999.55 × 133,760,505.30 - Step 4: Simplify right side
153,467,999.70x = 30,791,935,780,878,372 - Step 5: Solve for x
x = 30,791,935,780,878,372/153,467,999.70 - Step 6: Final answer
x = 200,640,757.95
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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.