Finding the Fourth Proportional to 3,768,486.80, 5,627,204.21 and 2,991,264.66
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Solution
The fourth proportional to 3,768,486.80, 5,627,204.21 and 2,991,264.66 is: 4,466,635.55
Step by Step Solution
- Step 1: Write the proportion equation
3,768,486.80 : 5,627,204.21 = 2,991,264.66 : x - Step 2: Convert to fraction form
3,768,486.80/5,627,204.21 = 2,991,264.66/x - Step 3: Cross multiply
3,768,486.80x = 5,627,204.21 × 2,991,264.66 - Step 4: Simplify right side
3,768,486.80x = 16,832,457,095,454.38 - Step 5: Solve for x
x = 16,832,457,095,454.38/3,768,486.80 - Step 6: Final answer
x = 4,466,635.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.