Finding the Fourth Proportional to 15,134,047.76, 20,884,813.84 and 8,258,646.80
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Solution
The fourth proportional to 15,134,047.76, 20,884,813.84 and 8,258,646.80 is: 11,396,838.69
Step by Step Solution
- Step 1: Write the proportion equation
15,134,047.76 : 20,884,813.84 = 8,258,646.80 : x - Step 2: Convert to fraction form
15,134,047.76/20,884,813.84 = 8,258,646.80/x - Step 3: Cross multiply
15,134,047.76x = 20,884,813.84 × 8,258,646.80 - Step 4: Simplify right side
15,134,047.76x = 172,480,300,988,311.72 - Step 5: Solve for x
x = 172,480,300,988,311.72/15,134,047.76 - Step 6: Final answer
x = 11,396,838.69
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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.