Finding the Fourth Proportional to 7,129,250.80, 10,693,876.20 and 3,350,114.80
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Solution
The fourth proportional to 7,129,250.80, 10,693,876.20 and 3,350,114.80 is: 5,025,172.20
Step by Step Solution
- Step 1: Write the proportion equation
7,129,250.80 : 10,693,876.20 = 3,350,114.80 : x - Step 2: Convert to fraction form
7,129,250.80/10,693,876.20 = 3,350,114.80/x - Step 3: Cross multiply
7,129,250.80x = 10,693,876.20 × 3,350,114.80 - Step 4: Simplify right side
7,129,250.80x = 35,825,712,926,987.76 - Step 5: Solve for x
x = 35,825,712,926,987.76/7,129,250.80 - Step 6: Final answer
x = 5,025,172.20
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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.