Finding the Fourth Proportional to 20,440,312.28, 30,668,647.79 and 8,310,708.08
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Solution
The fourth proportional to 20,440,312.28, 30,668,647.79 and 8,310,708.08 is: 12,469,387.72
Step by Step Solution
- Step 1: Write the proportion equation
20,440,312.28 : 30,668,647.79 = 8,310,708.08 : x - Step 2: Convert to fraction form
20,440,312.28/30,668,647.79 = 8,310,708.08/x - Step 3: Cross multiply
20,440,312.28x = 30,668,647.79 × 8,310,708.08 - Step 4: Simplify right side
20,440,312.28x = 254,878,178,837,683.91 - Step 5: Solve for x
x = 254,878,178,837,683.91/20,440,312.28 - Step 6: Final answer
x = 12,469,387.72
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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.