Finding the Fourth Proportional to 26,561,768.16, 36,672,164.42 and 21,678,638.21
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Solution
The fourth proportional to 26,561,768.16, 36,672,164.42 and 21,678,638.21 is: 29,930,333.70
Step by Step Solution
- Step 1: Write the proportion equation
26,561,768.16 : 36,672,164.42 = 21,678,638.21 : x - Step 2: Convert to fraction form
26,561,768.16/36,672,164.42 = 21,678,638.21/x - Step 3: Cross multiply
26,561,768.16x = 36,672,164.42 × 21,678,638.21 - Step 4: Simplify right side
26,561,768.16x = 795,002,584,806,523.38 - Step 5: Solve for x
x = 795,002,584,806,523.38/26,561,768.16 - Step 6: Final answer
x = 29,930,333.70
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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.