Finding the Fourth Proportional to 7,129,115.80, 10,693,673.70 and 6,877,173.40
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Solution
The fourth proportional to 7,129,115.80, 10,693,673.70 and 6,877,173.40 is: 10,315,760.10
Step by Step Solution
- Step 1: Write the proportion equation
7,129,115.80 : 10,693,673.70 = 6,877,173.40 : x - Step 2: Convert to fraction form
7,129,115.80/10,693,673.70 = 6,877,173.40/x - Step 3: Cross multiply
7,129,115.80x = 10,693,673.70 × 6,877,173.40 - Step 4: Simplify right side
7,129,115.80x = 73,542,248,317,919.58 - Step 5: Solve for x
x = 73,542,248,317,919.58/7,129,115.80 - Step 6: Final answer
x = 10,315,760.10
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Similar ratio
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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.