Finding the Fourth Proportional to 14,962,769.48, 20,648,630.75 and 8,347,357.95
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Solution
The fourth proportional to 14,962,769.48, 20,648,630.75 and 8,347,357.95 is: 11,519,358.92
Step by Step Solution
- Step 1: Write the proportion equation
14,962,769.48 : 20,648,630.75 = 8,347,357.95 : x - Step 2: Convert to fraction form
14,962,769.48/20,648,630.75 = 8,347,357.95/x - Step 3: Cross multiply
14,962,769.48x = 20,648,630.75 × 8,347,357.95 - Step 4: Simplify right side
14,962,769.48x = 172,361,512,005,890.19 - Step 5: Solve for x
x = 172,361,512,005,890.19/14,962,769.48 - Step 6: Final answer
x = 11,519,358.92
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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.