Finding the Fourth Proportional to 20,231,750.43, 27,920,479.91 and 11,064,393.18
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Solution
The fourth proportional to 20,231,750.43, 27,920,479.91 and 11,064,393.18 is: 15,269,225.89
Step by Step Solution
- Step 1: Write the proportion equation
20,231,750.43 : 27,920,479.91 = 11,064,393.18 : x - Step 2: Convert to fraction form
20,231,750.43/27,920,479.91 = 11,064,393.18/x - Step 3: Cross multiply
20,231,750.43x = 27,920,479.91 × 11,064,393.18 - Step 4: Simplify right side
20,231,750.43x = 308,923,167,443,209.06 - Step 5: Solve for x
x = 308,923,167,443,209.06/20,231,750.43 - Step 6: Final answer
x = 15,269,225.89
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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.