Finding the Fourth Proportional to 438,686,342.62, 605,452,128.01 and 277,765,283.18
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Solution
The fourth proportional to 438,686,342.62, 605,452,128.01 and 277,765,283.18 is: 383,357,231.47
Step by Step Solution
- Step 1: Write the proportion equation
438,686,342.62 : 605,452,128.01 = 277,765,283.18 : x - Step 2: Convert to fraction form
438,686,342.62/605,452,128.01 = 277,765,283.18/x - Step 3: Cross multiply
438,686,342.62x = 605,452,128.01 × 277,765,283.18 - Step 4: Simplify right side
438,686,342.62x = 168,173,581,789,450,496 - Step 5: Solve for x
x = 168,173,581,789,450,496/438,686,342.62 - Step 6: Final answer
x = 383,357,231.47
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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.