Finding the Fourth Proportional to 2,876,797,756.84, 3,969,987,805.38 and 1,556,712,478.12
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Solution
The fourth proportional to 2,876,797,756.84, 3,969,987,805.38 and 1,556,712,478.12 is: 2,148,266,954.09
Step by Step Solution
- Step 1: Write the proportion equation
2,876,797,756.84 : 3,969,987,805.38 = 1,556,712,478.12 : x - Step 2: Convert to fraction form
2,876,797,756.84/3,969,987,805.38 = 1,556,712,478.12/x - Step 3: Cross multiply
2,876,797,756.84x = 3,969,987,805.38 × 1,556,712,478.12 - Step 4: Simplify right side
2,876,797,756.84x = 6,180,129,554,619,279,360 - Step 5: Solve for x
x = 6,180,129,554,619,279,360/2,876,797,756.84 - Step 6: Final answer
x = 2,148,266,954.09
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1.5x scale
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.