Finding the Fourth Proportional to 4,138,709.83, 5,711,378.25 and 2,303,136.70
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Solution
The fourth proportional to 4,138,709.83, 5,711,378.25 and 2,303,136.70 is: 3,178,305.65
Step by Step Solution
- Step 1: Write the proportion equation
4,138,709.83 : 5,711,378.25 = 2,303,136.70 : x - Step 2: Convert to fraction form
4,138,709.83/5,711,378.25 = 2,303,136.70/x - Step 3: Cross multiply
4,138,709.83x = 5,711,378.25 × 2,303,136.70 - Step 4: Simplify right side
4,138,709.83x = 13,154,084,855,156.78 - Step 5: Solve for x
x = 13,154,084,855,156.78/4,138,709.83 - Step 6: Final answer
x = 3,178,305.65
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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.