Finding the Fourth Proportional to 49,138,512.18, 67,813,197.75 and 27,113,440.38
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Solution
The fourth proportional to 49,138,512.18, 67,813,197.75 and 27,113,440.38 is: 37,417,679.38
Step by Step Solution
- Step 1: Write the proportion equation
49,138,512.18 : 67,813,197.75 = 27,113,440.38 : x - Step 2: Convert to fraction form
49,138,512.18/67,813,197.75 = 27,113,440.38/x - Step 3: Cross multiply
49,138,512.18x = 67,813,197.75 × 27,113,440.38 - Step 4: Simplify right side
49,138,512.18x = 1,838,649,094,171,775 - Step 5: Solve for x
x = 1,838,649,094,171,775/49,138,512.18 - Step 6: Final answer
x = 37,417,679.38
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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.