Finding the Fourth Proportional to 20,173,789,882.19, 27,837,997,912.28 and 11,261,478,647.63
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Solution
The fourth proportional to 20,173,789,882.19, 27,837,997,912.28 and 11,261,478,647.63 is: 15,539,817,798.86
Step by Step Solution
- Step 1: Write the proportion equation
20,173,789,882.19 : 27,837,997,912.28 = 11,261,478,647.63 : x - Step 2: Convert to fraction form
20,173,789,882.19/27,837,997,912.28 = 11,261,478,647.63/x - Step 3: Cross multiply
20,173,789,882.19x = 27,837,997,912.28 × 11,261,478,647.63 - Step 4: Simplify right side
20,173,789,882.19x = 313,497,019,081,714,237,440 - Step 5: Solve for x
x = 313,497,019,081,714,237,440/20,173,789,882.19 - Step 6: Final answer
x = 15,539,817,798.86
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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.