Finding the Fourth Proportional to 15,132,904.17, 20,883,911.84 and 8,257,763.49
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Solution
The fourth proportional to 15,132,904.17, 20,883,911.84 and 8,257,763.49 is: 11,395,988.69
Step by Step Solution
- Step 1: Write the proportion equation
15,132,904.17 : 20,883,911.84 = 8,257,763.49 : x - Step 2: Convert to fraction form
15,132,904.17/20,883,911.84 = 8,257,763.49/x - Step 3: Cross multiply
15,132,904.17x = 20,883,911.84 × 8,257,763.49 - Step 4: Simplify right side
15,132,904.17x = 172,454,404,720,730.72 - Step 5: Solve for x
x = 172,454,404,720,730.72/15,132,904.17 - Step 6: Final answer
x = 11,395,988.69
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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.