Finding the Fourth Proportional to 2,912,647,568.23, 4,020,546,703.79 and 1,909,129,805.75
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Solution
The fourth proportional to 2,912,647,568.23, 4,020,546,703.79 and 1,909,129,805.75 is: 2,635,315,590.99
Step by Step Solution
- Step 1: Write the proportion equation
2,912,647,568.23 : 4,020,546,703.79 = 1,909,129,805.75 : x - Step 2: Convert to fraction form
2,912,647,568.23/4,020,546,703.79 = 1,909,129,805.75/x - Step 3: Cross multiply
2,912,647,568.23x = 4,020,546,703.79 × 1,909,129,805.75 - Step 4: Simplify right side
2,912,647,568.23x = 7,675,745,547,615,405,056 - Step 5: Solve for x
x = 7,675,745,547,615,405,056/2,912,647,568.23 - Step 6: Final answer
x = 2,635,315,590.99
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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.