Finding the Fourth Proportional to 7,039,605.21, 9,714,793.10 and 4,593,781.05
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Solution
The fourth proportional to 7,039,605.21, 9,714,793.10 and 4,593,781.05 is: 6,339,507.84
Step by Step Solution
- Step 1: Write the proportion equation
7,039,605.21 : 9,714,793.10 = 4,593,781.05 : x - Step 2: Convert to fraction form
7,039,605.21/9,714,793.10 = 4,593,781.05/x - Step 3: Cross multiply
7,039,605.21x = 9,714,793.10 × 4,593,781.05 - Step 4: Simplify right side
7,039,605.21x = 44,627,632,424,481.85 - Step 5: Solve for x
x = 44,627,632,424,481.85/7,039,605.21 - Step 6: Final answer
x = 6,339,507.84
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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.