Finding the Fourth Proportional to 4,253,633.80, 6,385,116.30 and 2,657,998.60
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Solution
The fourth proportional to 4,253,633.80, 6,385,116.30 and 2,657,998.60 is: 3,989,913.33
Step by Step Solution
- Step 1: Write the proportion equation
4,253,633.80 : 6,385,116.30 = 2,657,998.60 : x - Step 2: Convert to fraction form
4,253,633.80/6,385,116.30 = 2,657,998.60/x - Step 3: Cross multiply
4,253,633.80x = 6,385,116.30 × 2,657,998.60 - Step 4: Simplify right side
4,253,633.80x = 16,971,630,186,237.18 - Step 5: Solve for x
x = 16,971,630,186,237.18/4,253,633.80 - Step 6: Final answer
x = 3,989,913.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.