Finding the Fourth Proportional to 8,421,108.84, 11,621,199.69 and 4,649,292.45
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Solution
The fourth proportional to 8,421,108.84, 11,621,199.69 and 4,649,292.45 is: 6,416,061.95
Step by Step Solution
- Step 1: Write the proportion equation
8,421,108.84 : 11,621,199.69 = 4,649,292.45 : x - Step 2: Convert to fraction form
8,421,108.84/11,621,199.69 = 4,649,292.45/x - Step 3: Cross multiply
8,421,108.84x = 11,621,199.69 × 4,649,292.45 - Step 4: Simplify right side
8,421,108.84x = 54,030,355,978,659.34 - Step 5: Solve for x
x = 54,030,355,978,659.34/8,421,108.84 - Step 6: Final answer
x = 6,416,061.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.