Finding the Fourth Proportional to 27,995,715.75, 38,634,087.74 and 15,118,659.75
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Solution
The fourth proportional to 27,995,715.75, 38,634,087.74 and 15,118,659.75 is: 20,863,750.46
Step by Step Solution
- Step 1: Write the proportion equation
27,995,715.75 : 38,634,087.74 = 15,118,659.75 : x - Step 2: Convert to fraction form
27,995,715.75/38,634,087.74 = 15,118,659.75/x - Step 3: Cross multiply
27,995,715.75x = 38,634,087.74 × 15,118,659.75 - Step 4: Simplify right side
27,995,715.75x = 584,095,627,217,113.12 - Step 5: Solve for x
x = 584,095,627,217,113.12/27,995,715.75 - Step 6: Final answer
x = 20,863,750.46
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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.