Finding the Fourth Proportional to 5,389,730.10, 8,043,346.42 and 4,814,652.78
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Solution
The fourth proportional to 5,389,730.10, 8,043,346.42 and 4,814,652.78 is: 7,185,131.62
Step by Step Solution
- Step 1: Write the proportion equation
5,389,730.10 : 8,043,346.42 = 4,814,652.78 : x - Step 2: Convert to fraction form
5,389,730.10/8,043,346.42 = 4,814,652.78/x - Step 3: Cross multiply
5,389,730.10x = 8,043,346.42 × 4,814,652.78 - Step 4: Simplify right side
5,389,730.10x = 38,725,920,189,519.42 - Step 5: Solve for x
x = 38,725,920,189,519.42/5,389,730.10 - Step 6: Final answer
x = 7,185,131.62
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.