Finding the Fourth Proportional to 19,587,105.80, 29,380,658.70 and 19,461,134.60
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Solution
The fourth proportional to 19,587,105.80, 29,380,658.70 and 19,461,134.60 is: 29,191,701.90
Step by Step Solution
- Step 1: Write the proportion equation
19,587,105.80 : 29,380,658.70 = 19,461,134.60 : x - Step 2: Convert to fraction form
19,587,105.80/29,380,658.70 = 19,461,134.60/x - Step 3: Cross multiply
19,587,105.80x = 29,380,658.70 × 19,461,134.60 - Step 4: Simplify right side
19,587,105.80x = 571,780,953,597,361 - Step 5: Solve for x
x = 571,780,953,597,361/19,587,105.80 - Step 6: Final answer
x = 29,191,701.90
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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.