Finding the Fourth Proportional to 48,896,721.19, 67,449,376.74 and 30,530,120.23
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Solution
The fourth proportional to 48,896,721.19, 67,449,376.74 and 30,530,120.23 is: 42,114,021.78
Step by Step Solution
- Step 1: Write the proportion equation
48,896,721.19 : 67,449,376.74 = 30,530,120.23 : x - Step 2: Convert to fraction form
48,896,721.19/67,449,376.74 = 30,530,120.23/x - Step 3: Cross multiply
48,896,721.19x = 67,449,376.74 × 30,530,120.23 - Step 4: Simplify right side
48,896,721.19x = 2,059,237,581,310,765.25 - Step 5: Solve for x
x = 2,059,237,581,310,765.25/48,896,721.19 - Step 6: Final answer
x = 42,114,021.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.