Finding the Fourth Proportional to 4,078,560.68, 5,620,110.18 and 3,155,179.88
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Solution
The fourth proportional to 4,078,560.68, 5,620,110.18 and 3,155,179.88 is: 4,347,724.59
Step by Step Solution
- Step 1: Write the proportion equation
4,078,560.68 : 5,620,110.18 = 3,155,179.88 : x - Step 2: Convert to fraction form
4,078,560.68/5,620,110.18 = 3,155,179.88/x - Step 3: Cross multiply
4,078,560.68x = 5,620,110.18 × 3,155,179.88 - Step 4: Simplify right side
4,078,560.68x = 17,732,458,563,319.18 - Step 5: Solve for x
x = 17,732,458,563,319.18/4,078,560.68 - Step 6: Final answer
x = 4,347,724.59
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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.