Finding the Fourth Proportional to 5,120,004.28, 7,065,584.34 and 2,828,164.99
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Solution
The fourth proportional to 5,120,004.28, 7,065,584.34 and 2,828,164.99 is: 3,902,855.77
Step by Step Solution
- Step 1: Write the proportion equation
5,120,004.28 : 7,065,584.34 = 2,828,164.99 : x - Step 2: Convert to fraction form
5,120,004.28/7,065,584.34 = 2,828,164.99/x - Step 3: Cross multiply
5,120,004.28x = 7,065,584.34 × 2,828,164.99 - Step 4: Simplify right side
5,120,004.28x = 19,982,638,264,280.26 - Step 5: Solve for x
x = 19,982,638,264,280.26/5,120,004.28 - Step 6: Final answer
x = 3,902,855.77
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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.