Finding the Fourth Proportional to 6,121,202.80, 9,171,306.60 and 2,919,434.80
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Solution
The fourth proportional to 6,121,202.80, 9,171,306.60 and 2,919,434.80 is: 4,374,145.49
Step by Step Solution
- Step 1: Write the proportion equation
6,121,202.80 : 9,171,306.60 = 2,919,434.80 : x - Step 2: Convert to fraction form
6,121,202.80/9,171,306.60 = 2,919,434.80/x - Step 3: Cross multiply
6,121,202.80x = 9,171,306.60 × 2,919,434.80 - Step 4: Simplify right side
6,121,202.80x = 26,775,031,649,509.68 - Step 5: Solve for x
x = 26,775,031,649,509.68/6,121,202.80 - Step 6: Final answer
x = 4,374,145.49
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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.