Finding the Fourth Proportional to 28,835,551.08, 39,793,181.74 and 15,604,728.60
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Solution
The fourth proportional to 28,835,551.08, 39,793,181.74 and 15,604,728.60 is: 21,534,591.08
Step by Step Solution
- Step 1: Write the proportion equation
28,835,551.08 : 39,793,181.74 = 15,604,728.60 : x - Step 2: Convert to fraction form
28,835,551.08/39,793,181.74 = 15,604,728.60/x - Step 3: Cross multiply
28,835,551.08x = 39,793,181.74 × 15,604,728.60 - Step 4: Simplify right side
28,835,551.08x = 620,961,801,183,175.75 - Step 5: Solve for x
x = 620,961,801,183,175.75/28,835,551.08 - Step 6: Final answer
x = 21,534,591.08
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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.