Finding the Fourth Proportional to 49,806,474.21, 68,733,028.80 and 27,781,400.25
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Solution
The fourth proportional to 49,806,474.21, 68,733,028.80 and 27,781,400.25 is: 38,338,384.99
Step by Step Solution
- Step 1: Write the proportion equation
49,806,474.21 : 68,733,028.80 = 27,781,400.25 : x - Step 2: Convert to fraction form
49,806,474.21/68,733,028.80 = 27,781,400.25/x - Step 3: Cross multiply
49,806,474.21x = 68,733,028.80 × 27,781,400.25 - Step 4: Simplify right side
49,806,474.21x = 1,909,499,783,487,577 - Step 5: Solve for x
x = 1,909,499,783,487,577/49,806,474.21 - Step 6: Final answer
x = 38,338,384.99
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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.