Finding the Fourth Proportional to 10,699,471.32, 14,765,268.78 and 6,115,891.08
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Solution
The fourth proportional to 10,699,471.32, 14,765,268.78 and 6,115,891.08 is: 8,439,928.75
Step by Step Solution
- Step 1: Write the proportion equation
10,699,471.32 : 14,765,268.78 = 6,115,891.08 : x - Step 2: Convert to fraction form
10,699,471.32/14,765,268.78 = 6,115,891.08/x - Step 3: Cross multiply
10,699,471.32x = 14,765,268.78 × 6,115,891.08 - Step 4: Simplify right side
10,699,471.32x = 90,302,775,625,404.48 - Step 5: Solve for x
x = 90,302,775,625,404.48/10,699,471.32 - Step 6: Final answer
x = 8,439,928.75
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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.