Finding the Fourth Proportional to 15,423,664.26, 21,283,837.38 and 8,896,905.42
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Solution
The fourth proportional to 15,423,664.26, 21,283,837.38 and 8,896,905.42 is: 12,277,256.88
Step by Step Solution
- Step 1: Write the proportion equation
15,423,664.26 : 21,283,837.38 = 8,896,905.42 : x - Step 2: Convert to fraction form
15,423,664.26/21,283,837.38 = 8,896,905.42/x - Step 3: Cross multiply
15,423,664.26x = 21,283,837.38 × 8,896,905.42 - Step 4: Simplify right side
15,423,664.26x = 189,360,288,144,520.59 - Step 5: Solve for x
x = 189,360,288,144,520.59/15,423,664.26 - Step 6: Final answer
x = 12,277,256.88
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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.