Finding the Fourth Proportional to 2,512,447.20, 3,768,670.80 and 2,122,723.80
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Solution
The fourth proportional to 2,512,447.20, 3,768,670.80 and 2,122,723.80 is: 3,184,085.70
Step by Step Solution
- Step 1: Write the proportion equation
2,512,447.20 : 3,768,670.80 = 2,122,723.80 : x - Step 2: Convert to fraction form
2,512,447.20/3,768,670.80 = 2,122,723.80/x - Step 3: Cross multiply
2,512,447.20x = 3,768,670.80 × 2,122,723.80 - Step 4: Simplify right side
2,512,447.20x = 7,999,847,201,525.04 - Step 5: Solve for x
x = 7,999,847,201,525.04/2,512,447.20 - Step 6: Final answer
x = 3,184,085.70
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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.