Finding the Fourth Proportional to 8,421,114.84, 11,621,207.97 and 4,649,298.45
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Solution
The fourth proportional to 8,421,114.84, 11,621,207.97 and 4,649,298.45 is: 6,416,070.23
Step by Step Solution
- Step 1: Write the proportion equation
8,421,114.84 : 11,621,207.97 = 4,649,298.45 : x - Step 2: Convert to fraction form
8,421,114.84/11,621,207.97 = 4,649,298.45/x - Step 3: Cross multiply
8,421,114.84x = 11,621,207.97 × 4,649,298.45 - Step 4: Simplify right side
8,421,114.84x = 54,030,464,184,613.78 - Step 5: Solve for x
x = 54,030,464,184,613.78/8,421,114.84 - Step 6: Final answer
x = 6,416,070.23
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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.