Finding the Fourth Proportional to 34,370,968.48, 47,432,835.45 and 18,690,910.03
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Solution
The fourth proportional to 34,370,968.48, 47,432,835.45 and 18,690,910.03 is: 25,793,944.69
Step by Step Solution
- Step 1: Write the proportion equation
34,370,968.48 : 47,432,835.45 = 18,690,910.03 : x - Step 2: Convert to fraction form
34,370,968.48/47,432,835.45 = 18,690,910.03/x - Step 3: Cross multiply
34,370,968.48x = 47,432,835.45 × 18,690,910.03 - Step 4: Simplify right side
34,370,968.48x = 886,562,859,863,744.62 - Step 5: Solve for x
x = 886,562,859,863,744.62/34,370,968.48 - Step 6: Final answer
x = 25,793,944.69
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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.