Finding the Fourth Proportional to 18,821,640.70, 28,232,461.05 and 14,564,863.90
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Solution
The fourth proportional to 18,821,640.70, 28,232,461.05 and 14,564,863.90 is: 21,847,295.85
Step by Step Solution
- Step 1: Write the proportion equation
18,821,640.70 : 28,232,461.05 = 14,564,863.90 : x - Step 2: Convert to fraction form
18,821,640.70/28,232,461.05 = 14,564,863.90/x - Step 3: Cross multiply
18,821,640.70x = 28,232,461.05 × 14,564,863.90 - Step 4: Simplify right side
18,821,640.70x = 411,201,952,755,301.12 - Step 5: Solve for x
x = 411,201,952,755,301.12/18,821,640.70 - Step 6: Final answer
x = 21,847,295.85
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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.