Finding the Fourth Proportional to 5,390,707.28, 7,439,191.80 and 2,943,339.44
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Solution
The fourth proportional to 5,390,707.28, 7,439,191.80 and 2,943,339.44 is: 4,061,817.03
Step by Step Solution
- Step 1: Write the proportion equation
5,390,707.28 : 7,439,191.80 = 2,943,339.44 : x - Step 2: Convert to fraction form
5,390,707.28/7,439,191.80 = 2,943,339.44/x - Step 3: Cross multiply
5,390,707.28x = 7,439,191.80 × 2,943,339.44 - Step 4: Simplify right side
5,390,707.28x = 21,896,066,626,664.59 - Step 5: Solve for x
x = 21,896,066,626,664.59/5,390,707.28 - Step 6: Final answer
x = 4,061,817.03
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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.