Finding the Fourth Proportional to 105,409,202.82, 145,444,027.98 and 66,228,278.37
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Solution
The fourth proportional to 105,409,202.82, 145,444,027.98 and 66,228,278.37 is: 91,382,036.05
Step by Step Solution
- Step 1: Write the proportion equation
105,409,202.82 : 145,444,027.98 = 66,228,278.37 : x - Step 2: Convert to fraction form
105,409,202.82/145,444,027.98 = 66,228,278.37/x - Step 3: Cross multiply
105,409,202.82x = 145,444,027.98 × 66,228,278.37 - Step 4: Simplify right side
105,409,202.82x = 9,632,507,572,313,508 - Step 5: Solve for x
x = 9,632,507,572,313,508/105,409,202.82 - Step 6: Final answer
x = 91,382,036.05
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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.