Finding the Fourth Proportional to 5,157,534.87, 7,117,257.38 and 2,865,636.63
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Solution
The fourth proportional to 5,157,534.87, 7,117,257.38 and 2,865,636.63 is: 3,954,500.35
Step by Step Solution
- Step 1: Write the proportion equation
5,157,534.87 : 7,117,257.38 = 2,865,636.63 : x - Step 2: Convert to fraction form
5,157,534.87/7,117,257.38 = 2,865,636.63/x - Step 3: Cross multiply
5,157,534.87x = 7,117,257.38 × 2,865,636.63 - Step 4: Simplify right side
5,157,534.87x = 20,395,473,438,937.64 - Step 5: Solve for x
x = 20,395,473,438,937.64/5,157,534.87 - Step 6: Final answer
x = 3,954,500.35
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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.