Finding the Fourth Proportional to 68,215,984.71, 94,138,306.28 and 37,276,156.72
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Solution
The fourth proportional to 68,215,984.71, 94,138,306.28 and 37,276,156.72 is: 51,441,231.45
Step by Step Solution
- Step 1: Write the proportion equation
68,215,984.71 : 94,138,306.28 = 37,276,156.72 : x - Step 2: Convert to fraction form
68,215,984.71/94,138,306.28 = 37,276,156.72/x - Step 3: Cross multiply
68,215,984.71x = 94,138,306.28 × 37,276,156.72 - Step 4: Simplify right side
68,215,984.71x = 3,509,114,258,248,640 - Step 5: Solve for x
x = 3,509,114,258,248,640/68,215,984.71 - Step 6: Final answer
x = 51,441,231.45
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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.