Finding the Fourth Proportional to 19,928,132.70, 29,899,197.45 and 8,572,062.30
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Solution
The fourth proportional to 19,928,132.70, 29,899,197.45 and 8,572,062.30 is: 12,861,103.80
Step by Step Solution
- Step 1: Write the proportion equation
19,928,132.70 : 29,899,197.45 = 8,572,062.30 : x - Step 2: Convert to fraction form
19,928,132.70/29,899,197.45 = 8,572,062.30/x - Step 3: Cross multiply
19,928,132.70x = 29,899,197.45 × 8,572,062.30 - Step 4: Simplify right side
19,928,132.70x = 256,297,783,261,401.16 - Step 5: Solve for x
x = 256,297,783,261,401.16/19,928,132.70 - Step 6: Final answer
x = 12,861,103.80
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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.