Finding the Fourth Proportional to 21,562,306.20, 29,758,591.88 and 12,272,135.12
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Solution
The fourth proportional to 21,562,306.20, 29,758,591.88 and 12,272,135.12 is: 16,937,031.56
Step by Step Solution
- Step 1: Write the proportion equation
21,562,306.20 : 29,758,591.88 = 12,272,135.12 : x - Step 2: Convert to fraction form
21,562,306.20/29,758,591.88 = 12,272,135.12/x - Step 3: Cross multiply
21,562,306.20x = 29,758,591.88 × 12,272,135.12 - Step 4: Simplify right side
21,562,306.20x = 365,201,460,532,294.81 - Step 5: Solve for x
x = 365,201,460,532,294.81/21,562,306.20 - Step 6: Final answer
x = 16,937,031.56
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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.