Finding the Fourth Proportional to 2,768,358,543.68, 3,820,358,614.56 and 1,578,987,757.28
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Solution
The fourth proportional to 2,768,358,543.68, 3,820,358,614.56 and 1,578,987,757.28 is: 2,179,016,693.69
Step by Step Solution
- Step 1: Write the proportion equation
2,768,358,543.68 : 3,820,358,614.56 = 1,578,987,757.28 : x - Step 2: Convert to fraction form
2,768,358,543.68/3,820,358,614.56 = 1,578,987,757.28/x - Step 3: Cross multiply
2,768,358,543.68x = 3,820,358,614.56 × 1,578,987,757.28 - Step 4: Simplify right side
2,768,358,543.68x = 6,032,299,480,809,421,824 - Step 5: Solve for x
x = 6,032,299,480,809,421,824/2,768,358,543.68 - Step 6: Final answer
x = 2,179,016,693.69
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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.