Finding the Fourth Proportional to 10,268,478.38, 14,169,961.28 and 5,621,372.52
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Solution
The fourth proportional to 10,268,478.38, 14,169,961.28 and 5,621,372.52 is: 7,757,199.07
Step by Step Solution
- Step 1: Write the proportion equation
10,268,478.38 : 14,169,961.28 = 5,621,372.52 : x - Step 2: Convert to fraction form
10,268,478.38/14,169,961.28 = 5,621,372.52/x - Step 3: Cross multiply
10,268,478.38x = 14,169,961.28 × 5,621,372.52 - Step 4: Simplify right side
10,268,478.38x = 79,654,630,948,856.02 - Step 5: Solve for x
x = 79,654,630,948,856.02/10,268,478.38 - Step 6: Final answer
x = 7,757,199.07
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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.