Finding the Fourth Proportional to 2,750,001.60, 4,128,112.80 and 2,121,700.80
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Solution
The fourth proportional to 2,750,001.60, 4,128,112.80 and 2,121,700.80 is: 3,184,950.96
Step by Step Solution
- Step 1: Write the proportion equation
2,750,001.60 : 4,128,112.80 = 2,121,700.80 : x - Step 2: Convert to fraction form
2,750,001.60/4,128,112.80 = 2,121,700.80/x - Step 3: Cross multiply
2,750,001.60x = 4,128,112.80 × 2,121,700.80 - Step 4: Simplify right side
2,750,001.60x = 8,758,620,230,250.24 - Step 5: Solve for x
x = 8,758,620,230,250.24/2,750,001.60 - Step 6: Final answer
x = 3,184,950.96
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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.