Finding the Fourth Proportional to 201,939,090.48, 278,675,933.04 and 109,119,595.68
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Solution
The fourth proportional to 201,939,090.48, 278,675,933.04 and 109,119,595.68 is: 150,585,035.65
Step by Step Solution
- Step 1: Write the proportion equation
201,939,090.48 : 278,675,933.04 = 109,119,595.68 : x - Step 2: Convert to fraction form
201,939,090.48/278,675,933.04 = 109,119,595.68/x - Step 3: Cross multiply
201,939,090.48x = 278,675,933.04 × 109,119,595.68 - Step 4: Simplify right side
201,939,090.48x = 30,409,005,139,071,556 - Step 5: Solve for x
x = 30,409,005,139,071,556/201,939,090.48 - Step 6: Final answer
x = 150,585,035.65
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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.