Finding the Fourth Proportional to 39,019,313.71, 53,844,127.70 and 21,378,192.09
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Solution
The fourth proportional to 39,019,313.71, 53,844,127.70 and 21,378,192.09 is: 29,500,521.54
Step by Step Solution
- Step 1: Write the proportion equation
39,019,313.71 : 53,844,127.70 = 21,378,192.09 : x - Step 2: Convert to fraction form
39,019,313.71/53,844,127.70 = 21,378,192.09/x - Step 3: Cross multiply
39,019,313.71x = 53,844,127.70 × 21,378,192.09 - Step 4: Simplify right side
39,019,313.71x = 1,151,090,104,673,314.75 - Step 5: Solve for x
x = 1,151,090,104,673,314.75/39,019,313.71 - Step 6: Final answer
x = 29,500,521.54
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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.