Finding the Fourth Proportional to 4,638,557.16, 6,401,908.58 and 2,828,770.92
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Solution
The fourth proportional to 4,638,557.16, 6,401,908.58 and 2,828,770.92 is: 3,904,130.57
Step by Step Solution
- Step 1: Write the proportion equation
4,638,557.16 : 6,401,908.58 = 2,828,770.92 : x - Step 2: Convert to fraction form
4,638,557.16/6,401,908.58 = 2,828,770.92/x - Step 3: Cross multiply
4,638,557.16x = 6,401,908.58 × 2,828,770.92 - Step 4: Simplify right side
4,638,557.16x = 18,109,532,823,602.49 - Step 5: Solve for x
x = 18,109,532,823,602.49/4,638,557.16 - Step 6: Final answer
x = 3,904,130.57
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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.