Finding the Fourth Proportional to 5,168,947.68, 7,133,148 and 2,877,059.16
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Solution
The fourth proportional to 5,168,947.68, 7,133,148 and 2,877,059.16 is: 3,970,341.75
Step by Step Solution
- Step 1: Write the proportion equation
5,168,947.68 : 7,133,148 = 2,877,059.16 : x - Step 2: Convert to fraction form
5,168,947.68/7,133,148 = 2,877,059.16/x - Step 3: Cross multiply
5,168,947.68x = 7,133,148 × 2,877,059.16 - Step 4: Simplify right side
5,168,947.68x = 20,522,488,793,035.68 - Step 5: Solve for x
x = 20,522,488,793,035.68/5,168,947.68 - Step 6: Final answer
x = 3,970,341.75
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1.5x scale
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.