Finding the Fourth Proportional to 20,440,312.21, 30,668,647.70 and 8,310,708.01
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Solution
The fourth proportional to 20,440,312.21, 30,668,647.70 and 8,310,708.01 is: 12,469,387.62
Step by Step Solution
- Step 1: Write the proportion equation
20,440,312.21 : 30,668,647.70 = 8,310,708.01 : x - Step 2: Convert to fraction form
20,440,312.21/30,668,647.70 = 8,310,708.01/x - Step 3: Cross multiply
20,440,312.21x = 30,668,647.70 × 8,310,708.01 - Step 4: Simplify right side
20,440,312.21x = 254,878,176,096,258.06 - Step 5: Solve for x
x = 254,878,176,096,258.06/20,440,312.21 - Step 6: Final answer
x = 12,469,387.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.