Finding the Fourth Proportional to 15,838,213.42, 21,856,734.68 and 8,594,869.42
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Solution
The fourth proportional to 15,838,213.42, 21,856,734.68 and 8,594,869.42 is: 11,860,919.89
Step by Step Solution
- Step 1: Write the proportion equation
15,838,213.42 : 21,856,734.68 = 8,594,869.42 : x - Step 2: Convert to fraction form
15,838,213.42/21,856,734.68 = 8,594,869.42/x - Step 3: Cross multiply
15,838,213.42x = 21,856,734.68 × 8,594,869.42 - Step 4: Simplify right side
15,838,213.42x = 187,855,780,522,185.47 - Step 5: Solve for x
x = 187,855,780,522,185.47/15,838,213.42 - Step 6: Final answer
x = 11,860,919.89
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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.