Finding the Fourth Proportional to 22,885,107.18, 31,582,017.62 and 12,431,120.41
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Solution
The fourth proportional to 22,885,107.18, 31,582,017.62 and 12,431,120.41 is: 17,155,255.63
Step by Step Solution
- Step 1: Write the proportion equation
22,885,107.18 : 31,582,017.62 = 12,431,120.41 : x - Step 2: Convert to fraction form
22,885,107.18/31,582,017.62 = 12,431,120.41/x - Step 3: Cross multiply
22,885,107.18x = 31,582,017.62 × 12,431,120.41 - Step 4: Simplify right side
22,885,107.18x = 392,599,863,824,961.62 - Step 5: Solve for x
x = 392,599,863,824,961.62/22,885,107.18 - Step 6: Final answer
x = 17,155,255.63
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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.