Finding the Fourth Proportional to 157,230,187.20, 235,845,280.80 and 54,983,563.20
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Solution
The fourth proportional to 157,230,187.20, 235,845,280.80 and 54,983,563.20 is: 82,475,344.80
Step by Step Solution
- Step 1: Write the proportion equation
157,230,187.20 : 235,845,280.80 = 54,983,563.20 : x - Step 2: Convert to fraction form
157,230,187.20/235,845,280.80 = 54,983,563.20/x - Step 3: Cross multiply
157,230,187.20x = 235,845,280.80 × 54,983,563.20 - Step 4: Simplify right side
157,230,187.20x = 12,967,613,902,288,548 - Step 5: Solve for x
x = 12,967,613,902,288,548/157,230,187.20 - Step 6: Final answer
x = 82,475,344.80
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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.