Finding the Fourth Proportional to 20,324,155.50, 30,492,221.99 and 8,187,373.49
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Solution
The fourth proportional to 20,324,155.50, 30,492,221.99 and 8,187,373.49 is: 12,283,472.73
Step by Step Solution
- Step 1: Write the proportion equation
20,324,155.50 : 30,492,221.99 = 8,187,373.49 : x - Step 2: Convert to fraction form
20,324,155.50/30,492,221.99 = 8,187,373.49/x - Step 3: Cross multiply
20,324,155.50x = 30,492,221.99 × 8,187,373.49 - Step 4: Simplify right side
20,324,155.50x = 249,651,209,778,723.06 - Step 5: Solve for x
x = 249,651,209,778,723.06/20,324,155.50 - Step 6: Final answer
x = 12,283,472.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.