Finding the Fourth Proportional to 15,125,815.97, 20,873,626.09 and 8,250,298.03
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Solution
The fourth proportional to 15,125,815.97, 20,873,626.09 and 8,250,298.03 is: 11,385,411.31
Step by Step Solution
- Step 1: Write the proportion equation
15,125,815.97 : 20,873,626.09 = 8,250,298.03 : x - Step 2: Convert to fraction form
15,125,815.97/20,873,626.09 = 8,250,298.03/x - Step 3: Cross multiply
15,125,815.97x = 20,873,626.09 × 8,250,298.03 - Step 4: Simplify right side
15,125,815.97x = 172,213,636,214,749.88 - Step 5: Solve for x
x = 172,213,636,214,749.88/15,125,815.97 - Step 6: Final answer
x = 11,385,411.31
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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.