Finding the Fourth Proportional to 19,980,431.33, 27,572,994.97 and 10,813,074.08
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Solution
The fourth proportional to 19,980,431.33, 27,572,994.97 and 10,813,074.08 is: 14,922,042.08
Step by Step Solution
- Step 1: Write the proportion equation
19,980,431.33 : 27,572,994.97 = 10,813,074.08 : x - Step 2: Convert to fraction form
19,980,431.33/27,572,994.97 = 10,813,074.08/x - Step 3: Cross multiply
19,980,431.33x = 27,572,994.97 × 10,813,074.08 - Step 4: Simplify right side
19,980,431.33x = 298,148,837,053,179.69 - Step 5: Solve for x
x = 298,148,837,053,179.69/19,980,431.33 - Step 6: Final answer
x = 14,922,042.08
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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.