Finding the Fourth Proportional to 300,786,808.14, 415,221,804.18 and 189,441,287.28
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Solution
The fourth proportional to 300,786,808.14, 415,221,804.18 and 189,441,287.28 is: 261,514,637.48
Step by Step Solution
- Step 1: Write the proportion equation
300,786,808.14 : 415,221,804.18 = 189,441,287.28 : x - Step 2: Convert to fraction form
300,786,808.14/415,221,804.18 = 189,441,287.28/x - Step 3: Cross multiply
300,786,808.14x = 415,221,804.18 × 189,441,287.28 - Step 4: Simplify right side
300,786,808.14x = 78,660,153,090,583,280 - Step 5: Solve for x
x = 78,660,153,090,583,280/300,786,808.14 - Step 6: Final answer
x = 261,514,637.48
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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.