Finding the Fourth Proportional to 11,172,447.48, 15,417,971.82 and 6,277,688.76
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Solution
The fourth proportional to 11,172,447.48, 15,417,971.82 and 6,277,688.76 is: 8,663,207.28
Step by Step Solution
- Step 1: Write the proportion equation
11,172,447.48 : 15,417,971.82 = 6,277,688.76 : x - Step 2: Convert to fraction form
11,172,447.48/15,417,971.82 = 6,277,688.76/x - Step 3: Cross multiply
11,172,447.48x = 15,417,971.82 × 6,277,688.76 - Step 4: Simplify right side
11,172,447.48x = 96,789,228,396,410.73 - Step 5: Solve for x
x = 96,789,228,396,410.73/11,172,447.48 - Step 6: Final answer
x = 8,663,207.28
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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.