Finding the Fourth Proportional to 19,903,888, 27,470,004.42 and 11,203,749.28
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Solution
The fourth proportional to 19,903,888, 27,470,004.42 and 11,203,749.28 is: 15,462,659.47
Step by Step Solution
- Step 1: Write the proportion equation
19,903,888 : 27,470,004.42 = 11,203,749.28 : x - Step 2: Convert to fraction form
19,903,888/27,470,004.42 = 11,203,749.28/x - Step 3: Cross multiply
19,903,888x = 27,470,004.42 × 11,203,749.28 - Step 4: Simplify right side
19,903,888x = 307,767,042,242,171.81 - Step 5: Solve for x
x = 307,767,042,242,171.81/19,903,888 - Step 6: Final answer
x = 15,462,659.47
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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.