Finding the Fourth Proportional to 15,004,452.92, 20,706,244.43 and 8,128,934.99
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Solution
The fourth proportional to 15,004,452.92, 20,706,244.43 and 8,128,934.99 is: 11,217,984.13
Step by Step Solution
- Step 1: Write the proportion equation
15,004,452.92 : 20,706,244.43 = 8,128,934.99 : x - Step 2: Convert to fraction form
15,004,452.92/20,706,244.43 = 8,128,934.99/x - Step 3: Cross multiply
15,004,452.92x = 20,706,244.43 × 8,128,934.99 - Step 4: Simplify right side
15,004,452.92x = 168,319,714,754,988.38 - Step 5: Solve for x
x = 168,319,714,754,988.38/15,004,452.92 - Step 6: Final answer
x = 11,217,984.13
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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.