Finding the Fourth Proportional to 10,255,769.28, 14,157,319.42 and 6,390,200.30
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Solution
The fourth proportional to 10,255,769.28, 14,157,319.42 and 6,390,200.30 is: 8,821,191.70
Step by Step Solution
- Step 1: Write the proportion equation
10,255,769.28 : 14,157,319.42 = 6,390,200.30 : x - Step 2: Convert to fraction form
10,255,769.28/14,157,319.42 = 6,390,200.30/x - Step 3: Cross multiply
10,255,769.28x = 14,157,319.42 × 6,390,200.30 - Step 4: Simplify right side
10,255,769.28x = 90,468,106,804,879.83 - Step 5: Solve for x
x = 90,468,106,804,879.83/10,255,769.28 - Step 6: Final answer
x = 8,821,191.70
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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.