Finding the Fourth Proportional to 10,402,098.20, 15,603,195.90 and 3,670,512.20
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Solution
The fourth proportional to 10,402,098.20, 15,603,195.90 and 3,670,512.20 is: 5,505,785.45
Step by Step Solution
- Step 1: Write the proportion equation
10,402,098.20 : 15,603,195.90 = 3,670,512.20 : x - Step 2: Convert to fraction form
10,402,098.20/15,603,195.90 = 3,670,512.20/x - Step 3: Cross multiply
10,402,098.20x = 15,603,195.90 × 3,670,512.20 - Step 4: Simplify right side
10,402,098.20x = 57,271,720,909,939.98 - Step 5: Solve for x
x = 57,271,720,909,939.98/10,402,098.20 - Step 6: Final answer
x = 5,505,785.45
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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.