Finding the Fourth Proportional to 15,360,423.53, 21,198,028.12 and 8,834,057.44
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Solution
The fourth proportional to 15,360,423.53, 21,198,028.12 and 8,834,057.44 is: 12,191,369.44
Step by Step Solution
- Step 1: Write the proportion equation
15,360,423.53 : 21,198,028.12 = 8,834,057.44 : x - Step 2: Convert to fraction form
15,360,423.53/21,198,028.12 = 8,834,057.44/x - Step 3: Cross multiply
15,360,423.53x = 21,198,028.12 × 8,834,057.44 - Step 4: Simplify right side
15,360,423.53x = 187,264,597,951,735 - Step 5: Solve for x
x = 187,264,597,951,735/15,360,423.53 - Step 6: Final answer
x = 12,191,369.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.