Finding the Fourth Proportional to 4,891,056.94, 6,749,869.38 and 2,715,600.20
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Solution
The fourth proportional to 4,891,056.94, 6,749,869.38 and 2,715,600.20 is: 3,747,645.32
Step by Step Solution
- Step 1: Write the proportion equation
4,891,056.94 : 6,749,869.38 = 2,715,600.20 : x - Step 2: Convert to fraction form
4,891,056.94/6,749,869.38 = 2,715,600.20/x - Step 3: Cross multiply
4,891,056.94x = 6,749,869.38 × 2,715,600.20 - Step 4: Simplify right side
4,891,056.94x = 18,329,946,638,301.88 - Step 5: Solve for x
x = 18,329,946,638,301.88/4,891,056.94 - Step 6: Final answer
x = 3,747,645.32
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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.