Finding the Fourth Proportional to 7,241,026.20, 10,861,539.30 and 7,129,051.80
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Solution
The fourth proportional to 7,241,026.20, 10,861,539.30 and 7,129,051.80 is: 10,693,577.70
Step by Step Solution
- Step 1: Write the proportion equation
7,241,026.20 : 10,861,539.30 = 7,129,051.80 : x - Step 2: Convert to fraction form
7,241,026.20/10,861,539.30 = 7,129,051.80/x - Step 3: Cross multiply
7,241,026.20x = 10,861,539.30 × 7,129,051.80 - Step 4: Simplify right side
7,241,026.20x = 77,432,476,297,435.75 - Step 5: Solve for x
x = 77,432,476,297,435.75/7,241,026.20 - Step 6: Final answer
x = 10,693,577.70
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1.5x scale
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.