Finding the Fourth Proportional to 30,868,643.31, 46,320,901.19 and 13,829,316.31
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Solution
The fourth proportional to 30,868,643.31, 46,320,901.19 and 13,829,316.31 is: 20,752,009.99
Step by Step Solution
- Step 1: Write the proportion equation
30,868,643.31 : 46,320,901.19 = 13,829,316.31 : x - Step 2: Convert to fraction form
30,868,643.31/46,320,901.19 = 13,829,316.31/x - Step 3: Cross multiply
30,868,643.31x = 46,320,901.19 × 13,829,316.31 - Step 4: Simplify right side
30,868,643.31x = 640,586,394,320,765.38 - Step 5: Solve for x
x = 640,586,394,320,765.38/30,868,643.31 - Step 6: Final answer
x = 20,752,009.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.