Finding the Fourth Proportional to 18,916,748.71, 26,099,712.37 and 10,653,920.99
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Solution
The fourth proportional to 18,916,748.71, 26,099,712.37 and 10,653,920.99 is: 14,699,369.21
Step by Step Solution
- Step 1: Write the proportion equation
18,916,748.71 : 26,099,712.37 = 10,653,920.99 : x - Step 2: Convert to fraction form
18,916,748.71/26,099,712.37 = 10,653,920.99/x - Step 3: Cross multiply
18,916,748.71x = 26,099,712.37 × 10,653,920.99 - Step 4: Simplify right side
18,916,748.71x = 278,064,273,432,398.41 - Step 5: Solve for x
x = 278,064,273,432,398.41/18,916,748.71 - Step 6: Final answer
x = 14,699,369.21
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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.