Finding the Fourth Proportional to 20,273,423.68, 27,978,021.12 and 11,106,064
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Solution
The fourth proportional to 20,273,423.68, 27,978,021.12 and 11,106,064 is: 15,326,749.84
Step by Step Solution
- Step 1: Write the proportion equation
20,273,423.68 : 27,978,021.12 = 11,106,064 : x - Step 2: Convert to fraction form
20,273,423.68/27,978,021.12 = 11,106,064/x - Step 3: Cross multiply
20,273,423.68x = 27,978,021.12 × 11,106,064 - Step 4: Simplify right side
20,273,423.68x = 310,725,693,152,071.69 - Step 5: Solve for x
x = 310,725,693,152,071.69/20,273,423.68 - Step 6: Final answer
x = 15,326,749.84
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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.