Finding the Fourth Proportional to 4,943,801.60, 7,410,172.80 and 2,814,905.60
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Solution
The fourth proportional to 4,943,801.60, 7,410,172.80 and 2,814,905.60 is: 4,219,209.95
Step by Step Solution
- Step 1: Write the proportion equation
4,943,801.60 : 7,410,172.80 = 2,814,905.60 : x - Step 2: Convert to fraction form
4,943,801.60/7,410,172.80 = 2,814,905.60/x - Step 3: Cross multiply
4,943,801.60x = 7,410,172.80 × 2,814,905.60 - Step 4: Simplify right side
4,943,801.60x = 20,858,936,911,687.68 - Step 5: Solve for x
x = 20,858,936,911,687.68/4,943,801.60 - Step 6: Final answer
x = 4,219,209.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.