Finding the Fourth Proportional to 5,390,903.99, 7,439,748.92 and 2,943,742.23
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Solution
The fourth proportional to 5,390,903.99, 7,439,748.92 and 2,943,742.23 is: 4,062,528.87
Step by Step Solution
- Step 1: Write the proportion equation
5,390,903.99 : 7,439,748.92 = 2,943,742.23 : x - Step 2: Convert to fraction form
5,390,903.99/7,439,748.92 = 2,943,742.23/x - Step 3: Cross multiply
5,390,903.99x = 7,439,748.92 × 2,943,742.23 - Step 4: Simplify right side
5,390,903.99x = 21,900,703,061,682.18 - Step 5: Solve for x
x = 21,900,703,061,682.18/5,390,903.99 - Step 6: Final answer
x = 4,062,528.87
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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.