Finding the Fourth Proportional to 20,974,062.70, 31,407,949.95 and 16,722,534.70
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Solution
The fourth proportional to 20,974,062.70, 31,407,949.95 and 16,722,534.70 is: 25,041,430.48
Step by Step Solution
- Step 1: Write the proportion equation
20,974,062.70 : 31,407,949.95 = 16,722,534.70 : x - Step 2: Convert to fraction form
20,974,062.70/31,407,949.95 = 16,722,534.70/x - Step 3: Cross multiply
20,974,062.70x = 31,407,949.95 × 16,722,534.70 - Step 4: Simplify right side
20,974,062.70x = 525,220,532,894,738.25 - Step 5: Solve for x
x = 525,220,532,894,738.25/20,974,062.70 - Step 6: Final answer
x = 25,041,430.48
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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.