Finding the Fourth Proportional to 15,490,408.49, 21,377,162.58 and 8,521,265.08
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Solution
The fourth proportional to 15,490,408.49, 21,377,162.58 and 8,521,265.08 is: 11,759,565.23
Step by Step Solution
- Step 1: Write the proportion equation
15,490,408.49 : 21,377,162.58 = 8,521,265.08 : x - Step 2: Convert to fraction form
15,490,408.49/21,377,162.58 = 8,521,265.08/x - Step 3: Cross multiply
15,490,408.49x = 21,377,162.58 × 8,521,265.08 - Step 4: Simplify right side
15,490,408.49x = 182,160,469,060,146.22 - Step 5: Solve for x
x = 182,160,469,060,146.22/15,490,408.49 - Step 6: Final answer
x = 11,759,565.23
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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.