Finding the Fourth Proportional to 49,447,201.78, 68,235,845.72 and 27,420,645.38
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Solution
The fourth proportional to 49,447,201.78, 68,235,845.72 and 27,420,645.38 is: 37,839,773.75
Step by Step Solution
- Step 1: Write the proportion equation
49,447,201.78 : 68,235,845.72 = 27,420,645.38 : x - Step 2: Convert to fraction form
49,447,201.78/68,235,845.72 = 27,420,645.38/x - Step 3: Cross multiply
49,447,201.78x = 68,235,845.72 × 27,420,645.38 - Step 4: Simplify right side
49,447,201.78x = 1,871,070,927,692,510.75 - Step 5: Solve for x
x = 1,871,070,927,692,510.75/49,447,201.78 - Step 6: Final answer
x = 37,839,773.75
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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.