Finding the Fourth Proportional to 19,920,725.08, 27,489,874.74 and 11,099,720.36
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Solution
The fourth proportional to 19,920,725.08, 27,489,874.74 and 11,099,720.36 is: 15,317,209.65
Step by Step Solution
- Step 1: Write the proportion equation
19,920,725.08 : 27,489,874.74 = 11,099,720.36 : x - Step 2: Convert to fraction form
19,920,725.08/27,489,874.74 = 11,099,720.36/x - Step 3: Cross multiply
19,920,725.08x = 27,489,874.74 × 11,099,720.36 - Step 4: Simplify right side
19,920,725.08x = 305,129,922,345,427.69 - Step 5: Solve for x
x = 305,129,922,345,427.69/19,920,725.08 - Step 6: Final answer
x = 15,317,209.65
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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.