Finding the Fourth Proportional to 3,838,913.68, 5,297,683.08 and 2,120,026.72
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Solution
The fourth proportional to 3,838,913.68, 5,297,683.08 and 2,120,026.72 is: 2,925,627.04
Step by Step Solution
- Step 1: Write the proportion equation
3,838,913.68 : 5,297,683.08 = 2,120,026.72 : x - Step 2: Convert to fraction form
3,838,913.68/5,297,683.08 = 2,120,026.72/x - Step 3: Cross multiply
3,838,913.68x = 5,297,683.08 × 2,120,026.72 - Step 4: Simplify right side
3,838,913.68x = 11,231,229,683,691.90 - Step 5: Solve for x
x = 11,231,229,683,691.90/3,838,913.68 - Step 6: Final answer
x = 2,925,627.04
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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.