Finding the Fourth Proportional to 10,209,115.20, 15,313,672.80 and 4,146,751.20
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Solution
The fourth proportional to 10,209,115.20, 15,313,672.80 and 4,146,751.20 is: 6,220,126.80
Step by Step Solution
- Step 1: Write the proportion equation
10,209,115.20 : 15,313,672.80 = 4,146,751.20 : x - Step 2: Convert to fraction form
10,209,115.20/15,313,672.80 = 4,146,751.20/x - Step 3: Cross multiply
10,209,115.20x = 15,313,672.80 × 4,146,751.20 - Step 4: Simplify right side
10,209,115.20x = 63,501,991,059,807.37 - Step 5: Solve for x
x = 63,501,991,059,807.37/10,209,115.20 - Step 6: Final answer
x = 6,220,126.80
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1.5x scale
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.