Finding the Fourth Proportional to 408,169,393.92, 611,930,764.80 and 203,592,165.12
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Solution
The fourth proportional to 408,169,393.92, 611,930,764.80 and 203,592,165.12 is: 305,226,974.79
Step by Step Solution
- Step 1: Write the proportion equation
408,169,393.92 : 611,930,764.80 = 203,592,165.12 : x - Step 2: Convert to fraction form
408,169,393.92/611,930,764.80 = 203,592,165.12/x - Step 3: Cross multiply
408,169,393.92x = 611,930,764.80 × 203,592,165.12 - Step 4: Simplify right side
408,169,393.92x = 124,584,309,309,169,472 - Step 5: Solve for x
x = 124,584,309,309,169,472/408,169,393.92 - Step 6: Final answer
x = 305,226,974.79
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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.