Finding the Fourth Proportional to 7,480,132.86, 11,220,202.37 and 1,800,357.17
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Solution
The fourth proportional to 7,480,132.86, 11,220,202.37 and 1,800,357.17 is: 2,700,536.50
Step by Step Solution
- Step 1: Write the proportion equation
7,480,132.86 : 11,220,202.37 = 1,800,357.17 : x - Step 2: Convert to fraction form
7,480,132.86/11,220,202.37 = 1,800,357.17/x - Step 3: Cross multiply
7,480,132.86x = 11,220,202.37 × 1,800,357.17 - Step 4: Simplify right side
7,480,132.86x = 20,200,371,825,505.81 - Step 5: Solve for x
x = 20,200,371,825,505.81/7,480,132.86 - Step 6: Final answer
x = 2,700,536.50
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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.