Finding the Fourth Proportional to 19,461,423.60, 29,192,135.40 and 15,682,287.60
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Solution
The fourth proportional to 19,461,423.60, 29,192,135.40 and 15,682,287.60 is: 23,523,431.40
Step by Step Solution
- Step 1: Write the proportion equation
19,461,423.60 : 29,192,135.40 = 15,682,287.60 : x - Step 2: Convert to fraction form
19,461,423.60/29,192,135.40 = 15,682,287.60/x - Step 3: Cross multiply
19,461,423.60x = 29,192,135.40 × 15,682,287.60 - Step 4: Simplify right side
19,461,423.60x = 457,799,463,000,941 - Step 5: Solve for x
x = 457,799,463,000,941/19,461,423.60 - Step 6: Final answer
x = 23,523,431.40
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1.5x scale
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.